The use of be in English is very broad. There are many ways you can use this verb such as a linking verb and main verb. Sometimes it can also be a helping verb.
We use “am/is/are” be present tense to say who is who such as in examples below:
Positive Sentence Examples
I am
He/she/it is
We/you/they are
- I am a student.
- She is a student.
- He is a student.
- It is a book.
- It is a pen.
- We are students.
- You are a student.
- You are student.
- They are students.
Negative sentence examples
- I am not a student.
- She is not a student.
- He is not a student.
- It is not a pen.
- ..
- We are not student.
- You are not a student.
- You are not students.
- They are not students.
Negative Sentence example with short form
- I’m not a student.
- She isn’t a student.
- He isn’t a student.
- It isn’t a pen.
- …
- We aren’t students.
- They aren’t students.
- You aren’t a student.
- You aren’t a student.
Interrogative sentence Examples
- Am I a student?
- Is she a student?
- Is he a student?
- Is it a book?
- ….
- Are you a student?
- Are you students?
- Are we students?
- Are they students?