Connect a person with information
English normally needs both a subject and a verb in a complete statement. A name alone followed by a profession is not a complete standard sentence. The verb be connects the person to information about that person. It can introduce a job, a feeling, an origin, or a location. English does not choose different basic verbs according to whether a quality seems permanent. A person can be a teacher for a short period or tired for a long period, and the same verb still works. Decide who the subject is before selecting its form.
I am a student.
The speaker is a student.
The speaker refers to themself with the first person singular subject. Its present form is unique. The profession is a singular count noun, so the phrase also needs an article before the job description.
Nora is tired.
Nora feels tired.
One person’s name takes the same verb form as a singular third person pronoun. The adjective describes her condition. There is no article before this adjective because it is not a singular count noun.
Match the subject rather than the nearest word
Find the person or thing that the statement is about. I am, you are, he is, she is, it is, we are, and they are form the basic set. You uses the same verb whether it addresses one person or several. A phrase joined with and normally describes a plural subject. Words inside a phrase describing the subject can be misleading: in The box of pencils is blue, the box controls agreement. The pencils do not become the subject simply because their name is nearer to the verb.
You are early.
The listener has arrived early.
The English second person pronoun keeps this verb form when the listener is one person. Number of listeners does not turn it into the third person singular form. This also works when speaking to a group.
Lena and Omar are here.
Both Lena and Omar are here.
Two names joined by and form a plural subject. The sentence locates the pair together. The location word does not require an article, and English still keeps a verb between the subject and the location.
Follow a complete example
Build a sentence with this meaning: The listener has arrived early. Before looking at the answer, identify which information controls the grammatical choice.
- First, identify the message: The listener has arrived early. Keep that message fixed while comparing forms. A sentence can be grammatical yet communicate something different, so meaning is part of the decision.
- The English second person pronoun keeps this verb form when the listener is one person. Number of listeners does not turn it into the third person singular form. This also works when speaking to a group.
- Now read the complete sentence, You are early.. Check the words surrounding your choice as well as the choice itself. Explain what would change if the speaker, number, or intended message changed. Then cover this example and reconstruct the sentence from the English cue.
You are early. The listener has arrived early.
Use contractions inside a complete statement
Contractions combine a pronoun with a form of be. The apostrophe records omitted letters: I’m, you’re, he’s, she’s, it’s, we’re, and they’re. They are ordinary in conversation and many informal messages. A contraction is not a different tense or a weaker statement. Keep the apostrophe in writing because several uncontracted spellings have other meanings. Your describes possession, whereas you’re means you are. Expanding a contraction is a useful check. If the expanded words do not make sense in the sentence, the spelling is probably wrong.
You’re in room six.
You are in room six.
Expanding the answer produces a subject and a present verb before the location. This sentence tells the listener where they are. An apostrophe is essential because the similar possessive spelling performs a different grammatical job.
They’re my neighbors.
They are my neighbors.
The contraction includes both the plural subject and its verb. The following possessive phrase identifies those people. The word for ownership and the word for a place sound similar in many accents but are different spellings.
References for this explanation
Negate the verb without adding do
Put not after am, is, or are. You can keep the words separate or use a standard contraction. She is not, she’s not, and she isn’t express the same basic negative meaning. With I, the usual contracted version is I’m not. Standard American English does not normally use amn’t. Do not build these sentences with do or does. Those helpers belong to another pattern, used with ordinary verbs such as work. A useful contrast is She isn’t tired beside She doesn’t work here.
I am not late.
The speaker denies being late.
The negative word follows the first person form of be. Both the subject and the finite verb remain present. A longer phrase after the negative can describe a condition, an identity, or a location without changing this order.
The shops aren’t open.
The shops are closed.
The subject refers to several shops, so the negative contraction contains the plural form. The adjective has the same spelling whether one shop or several shops are described. English adjectives do not take a plural ending.
References for this explanation
Turn a statement into a question
For a basic question, place the form of be before the subject. You are ready becomes Are you ready? The remaining description stays in place. Use a question mark in writing and a natural question intonation when speaking. Information words such as where come before the verb: Where are you? These are questions about a state or location, so there is no additional do. Statement order can occur in surprised conversational checking, but the neutral question pattern practiced here uses verb before subject.
Is the room quiet?
Ask whether the room is quiet.
The question begins with the singular form because one room is the subject. The adjective remains after the subject. Reversing the first two elements changes the sentence type while preserving the basic meaning being checked.
Where are the tickets?
Ask for the location of the tickets.
The information word comes first, followed by the verb and then the plural noun phrase. The tickets control the verb form. A place answer would complete the information requested, rather than a simple yes or no.
References for this explanation
Keep the full verb in positive short answers
A short answer repeats the subject and the relevant verb rather than the whole description. When someone asks Are you ready?, the reply can be Yes, I am or No, I’m not. Notice that the pronoun changes with the speaker’s point of view. Positive short answers normally keep the final verb uncontracted: Yes, she is, not Yes, she’s. Negative short answers can contain isn’t or aren’t because the negative contraction can stand at the end. Learn these replies as complete conversational units rather than chopping a longer sentence anywhere.
Yes, I am.
Answer yes when asked whether you are ready.
The question addresses you, but you answer about yourself. The reply therefore uses the first person subject and its verb. A positive short answer ends with the full verb, even when a longer statement could contain a contraction.
No, she isn’t.
Answer no when asked whether Nora is at home.
A negative short answer can finish with this contraction. It refers back to Nora using a singular pronoun. The place phrase can be omitted because the earlier question already established exactly what information is being denied.
Try the reasoning with less help
Build a sentence with this meaning: Answer yes when asked whether you are ready. Before looking at the answer, identify which information controls the grammatical choice.
- First, identify the message: Answer yes when asked whether you are ready. Keep that message fixed while comparing forms. A sentence can be grammatical yet communicate something different, so meaning is part of the decision.
- The question addresses you, but you answer about yourself. The reply therefore uses the first person subject and its verb. A positive short answer ends with the full verb, even when a longer statement could contain a contraction.
- Now read the complete sentence, Yes, I am.. Check the words surrounding your choice as well as the choice itself. Explain what would change if the speaker, number, or intended message changed. Then cover this example and reconstruct the sentence from the English cue.
Compare your reasoning
Yes, I am. Answer yes when asked whether you are ready.
References for this explanation
Set boundaries for descriptions and habits
Use be for numerical age in English: I am twenty. Do not transfer a pattern using the verb for possession from another language. Descriptions can include a singular profession with an article, an adjective without an article, or a place phrase. Frequency words often follow be, as in We are usually early, while they normally precede an ordinary verb. This lesson concerns present forms used as the main verb. Later you will also meet be as a helper in is working and passive constructions. Those patterns need their own explanation.
She is twenty.
State that she is twenty years old.
English treats numerical age as information linked by be. The number can stand alone when age is clear, or it can be followed by years old. The third person singular subject determines the particular form of the verb.
We are usually early.
Say that your group tends to arrive early.
A frequency adverb normally follows the main verb be in this basic pattern. The sentence describes a repeated tendency without requiring a different verb form. A group including the speaker takes the plural first person pronoun.
Notice the difference
Common mistakes
Keep the subject
Instead ofAm ready.
For this meaningI am ready.
A normal complete English statement needs an expressed subject. The verb ending alone does not identify the speaker sufficiently in this standard pattern. Some informal notes omit a subject, but that is not the complete sentence model to practice here. Restore the subject before choosing a contraction or adding a description.
Use an article with a job
Instead ofShe is teacher.
For this meaningShe is a teacher.
A singular count noun used as a profession normally requires a determiner. The verb itself is correct. Repair the noun phrase by adding an indefinite article, while leaving adjective descriptions such as tired without an article. This distinction depends on the kind of word following the verb rather than how important the profession is.
Separate an adjective from an action
Instead ofI am work here.
For this meaningI work here.
An ordinary simple present action verb does not need be immediately before it. Decide whether you are describing a state with an adjective or stating an action with a lexical verb. If you want an action in progress, a different construction uses be plus an ing form, but that is a separate message and pattern.
From understanding to using
Make your own example.
Try these without answer choices. Say your answer aloud or write it below, then compare your reasoning with the model.
Your turn 1
Introduce yourself as a student, say that you are in the library, and add that you are not tired. Write three complete statements before opening the model.
Compare with a model
I am a student. I am in the library. I am not tired.
The speaker identifies their role and location and denies feeling tired.
All three sentences have the same subject, so the verb remains the first person singular form. The information after the verb changes its grammatical shape: a profession needs an article, a location uses a preposition, and an adjective stands without an article. Negation adds a word after the verb. You could contract the subject and verb in each sentence without changing the message.
- Did you preserve the requested meaning?
- Does the form match the person or noun in your message?
- Can you explain your choice before looking at the model?
Your turn 2
Ask whether two friends are ready. Then answer the question yourself on their behalf, first positively and then negatively.
Compare with a model
Are they ready? Yes, they are. No, they are not.
Ask about the friends and give both possible replies.
The two friends are represented by the plural pronoun. The question puts the verb before that subject. Both short replies return to statement order, and the positive reply keeps its final verb uncontracted. In the negative reply, a contraction of the verb and negative word is also possible. Keep the adjective unchanged when shifting between one friend and two friends.
- Did you preserve the requested meaning?
- Does the form match the person or noun in your message?
- Can you explain your choice before looking at the model?
Put it into practice
Make the next choice.
Choose a response and learn why it works. Your score reflects your first answer to each question. You can revisit anything you miss.
Choose an answer, then open the explanation to check your reasoning.
Question 1
Complete the sentence for this meaning: The speaker is a student.
I ___ a student.
- am
- is
Check the answer
Answer: am
am: The speaker refers to themself with the first person singular subject. Its present form is unique. The profession is a singular count noun, so the phrase also needs an article before the job description.
is: This form belongs with a third person singular subject, such as a name or she. It does not agree with the first person subject.
Question 2
Complete the sentence for this meaning: Nora feels tired.
Nora ___ tired.
- are
- is
Check the answer
Answer: is
are: This form would match a plural subject or you. A single person’s name needs the singular third person form here.
is: One person’s name takes the same verb form as a singular third person pronoun. The adjective describes her condition. There is no article before this adjective because it is not a singular count noun.
Question 3
Complete the sentence for this meaning: The listener has arrived early.
You ___ early.
- are
- is
Check the answer
Answer: are
are: The English second person pronoun keeps this verb form when the listener is one person. Number of listeners does not turn it into the third person singular form. This also works when speaking to a group.
is: Even when only one listener is present, you takes are. The form is depends on grammatical person, not simply a count of people.
Question 4
Complete the sentence for this meaning: Both Lena and Omar are here.
Lena and Omar ___ here.
- am
- are
Check the answer
Answer: are
am: This form is restricted to I in standard present statements. It cannot agree with two named people.
are: Two names joined by and form a plural subject. The sentence locates the pair together. The location word does not require an article, and English still keeps a verb between the subject and the location.
Question 5
Complete the sentence for this meaning: You are in room six.
___ in room six.
- You’re
- Your
Check the answer
Answer: You’re
You’re: Expanding the answer produces a subject and a present verb before the location. This sentence tells the listener where they are. An apostrophe is essential because the similar possessive spelling performs a different grammatical job.
Your: This is a possessive determiner and needs a following noun phrase. It cannot supply the verb in the requested location statement.
Question 6
Complete the sentence for this meaning: They are my neighbors.
___ my neighbors.
- Their
- They’re
Check the answer
Answer: They’re
Their: This marks possession and cannot mean they are. The sentence would have no finite verb if you used it here.
They’re: The contraction includes both the plural subject and its verb. The following possessive phrase identifies those people. The word for ownership and the word for a place sound similar in many accents but are different spellings.
Question 7
Complete the sentence for this meaning: The speaker denies being late.
I ___ late.
- am not
- don’t am
Check the answer
Answer: am not
am not: The negative word follows the first person form of be. Both the subject and the finite verb remain present. A longer phrase after the negative can describe a condition, an identity, or a location without changing this order.
don’t am: Do is not used to support a simple negative of be. Keep am and put not immediately after it.
Question 8
Complete the sentence for this meaning: The shops are closed.
The shops ___ open.
- isn’t
- aren’t
Check the answer
Answer: aren’t
isn’t: This contains the singular verb. It would fit one shop, but it does not agree with the plural subject in this sentence.
aren’t: The subject refers to several shops, so the negative contraction contains the plural form. The adjective has the same spelling whether one shop or several shops are described. English adjectives do not take a plural ending.
Question 9
Complete the sentence for this meaning: Ask whether the room is quiet.
___ the room quiet?
- Is
- Does
Check the answer
Answer: Is
Is: The question begins with the singular form because one room is the subject. The adjective remains after the subject. Reversing the first two elements changes the sentence type while preserving the basic meaning being checked.
Does: Does needs an ordinary verb in its base form. It cannot directly connect the room with the adjective in this question.
Question 10
Complete the sentence for this meaning: Ask for the location of the tickets.
Where ___ the tickets?
- is
- are
Check the answer
Answer: are
is: The plural noun phrase requires are. The question word does not make the following subject singular.
are: The information word comes first, followed by the verb and then the plural noun phrase. The tickets control the verb form. A place answer would complete the information requested, rather than a simple yes or no.
Question 11
Complete the sentence for this meaning: Answer yes when asked whether you are ready.
Yes, I ___.
- am
- are
Check the answer
Answer: am
am: The question addresses you, but you answer about yourself. The reply therefore uses the first person subject and its verb. A positive short answer ends with the full verb, even when a longer statement could contain a contraction.
are: This agrees with you, we, or they, not with the I that begins the reply. Change perspective as well as sentence type.
Question 12
Complete the sentence for this meaning: Answer no when asked whether Nora is at home.
No, she ___.
- aren’t
- isn’t
Check the answer
Answer: isn’t
aren’t: The subject she requires the singular verb. This plural contraction cannot agree with it in standard English.
isn’t: A negative short answer can finish with this contraction. It refers back to Nora using a singular pronoun. The place phrase can be omitted because the earlier question already established exactly what information is being denied.
Question 13
Complete the sentence for this meaning: State that she is twenty years old.
She ___ twenty.
- is
- has
Check the answer
Answer: is
is: English treats numerical age as information linked by be. The number can stand alone when age is clear, or it can be followed by years old. The third person singular subject determines the particular form of the verb.
has: A possession verb alone does not express numerical age in standard English. It would need an object describing something she possesses.
Question 14
Complete the sentence for this meaning: Say that your group tends to arrive early.
We ___ early.
- usually are do
- are usually
Check the answer
Answer: are usually
usually are do: This sequence adds an unnecessary helper after the form of be. The ordinary statement needs only the subject, be, and the frequency description.
are usually: A frequency adverb normally follows the main verb be in this basic pattern. The sentence describes a repeated tendency without requiring a different verb form. A group including the speaker takes the plural first person pronoun.
Keep the conversation going
What to practice next
Return to the production tasks after a break. Reconstruct your sentences without the models, compare the meaning and form, and repair any error by explaining its cause. Then use one sentence in a short exchange of your own.
Sources and editorial notes
By Loquus ·
Source checked with AI assistance
These original explanations synthesize the cited sources. They have not been certified by an independent human language specialist. Regional usage and context are described where they affect the answer. Report a correction in the discussion below.
- British Council LearnEnglish: Present simple: be
- British Council LearnEnglish: Personal pronouns
- British Council LearnEnglish: Questions and negatives
- British Council LearnEnglish: Count nouns
- British Council LearnEnglish: Uncount nouns
- British Council LearnEnglish: The indefinite article
- British Council LearnEnglish: The definite article
- British Council LearnEnglish: Demonstratives
- British Council LearnEnglish: Where adjectives go in a sentence
- British Council LearnEnglish: How often
Learning research behind the practice
Worked examples, retrieval practice, and later review inform the activities. These studies do not establish the effectiveness of this specific lesson.
- Karpicke and Roediger: The critical importance of retrieval for learning
- Butler and Roediger: Feedback enhances the positive effects and reduces the negative effects of multiple choice testing
- Institute of Education Sciences: Organizing Instruction and Study to Improve Student Learning
- Rittle Johnson and Star: Compared to what?