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CEFR English

A1 Grammar: Chapter 1

The Verb 'To Be'

Learn how to use 'am', 'is', and 'are' to talk about yourself and others!

Introduction to 'To Be'

The verb "to be" is one of the most important verbs in English. We use it to talk about:

  • Names: My name is Ana.
  • Nationalities: I am from Spain.
  • Ages: He is 48 years old.
  • Feelings: I am happy.
  • Descriptions: It is a big house.

The verb 'to be' changes its form depending on the subject (who or what is doing the action).

1. Positive Statements (I am, You are, He is...)

When we want to say something positive or true, we use these forms:

SubjectFull FormShort FormExamples
II amI'mI'm a student.
I'm happy.
YouYou areYou'reYou're new.
You're welcome.
HeHe isHe'sHe's my brother.
He's from Canada.
SheShe isShe'sShe's my mother.
She's 45.
ItIt isIt'sIt's a dog.
It's cold today.
WeWe areWe'reWe're friends.
We're in class.
TheyThey areThey'reThey're teachers.
They're busy.

Note: Contractions (short forms) like "I'm" or "He's" are very common in spoken English and informal writing. Use them to sound more natural!

2. Negative Statements (I am not, You are not...)

To say that something is *not* true, we add "not" after the verb "to be".

SubjectFull Form + notShort FormExamples
II am notI'm notI'm not tired.
I'm not from France.
YouYou are notYou aren'tYou aren't a teacher.
You aren't old.
HeHe is notHe isn'tHe isn't sad.
He isn't here.
SheShe is notShe isn'tShe isn't my sister.
She isn't at home.
ItIt is notIt isn'tIt isn't a cat.
It isn't hot.
WeWe are notWe aren'tWe aren't busy.
We aren't colleagues.
TheyThey are notThey aren'tThey aren't students.
They aren't happy.

Note: For "is not" and "are not", you can also say "is not" and "are not" (full forms), but "isn't" and "aren't" are more common in everyday speech.

3. Yes/No Questions and Short Answers

To ask a question with "to be", we put the verb (am, are, is) before the subject.

Question StructureExample QuestionShort Answer (Yes)Short Answer (No)
Am I...?Am I correct?Yes, you are.No, you aren't.
Are you...?Are you new here?Yes, I am.No, I'm not.
Is he...?Is he from Canada?Yes, he is.No, he isn't.
Is she...?Is she 12?Yes, she is.No, she isn't.
Is it...?Is it a dog?Yes, it is.No, it isn't.
Are we...?Are we in class?Yes, we are.No, we aren't.
Are they...?Are they your parents?Yes, they are.No, they aren't.

Important: Always use a short answer (e.g., "Yes, I am." / "No, he isn't.") not just "Yes" or "No."

Practice Exercise: Complete with 'am', 'is', or 'are'
1. I ____ happy.
2. She ____ from Spain.
3. They ____ students.
4. He ____ my brother.
5. You ____ new here.
6. It ____ a small cat.
7. We ____ friends.