The negative form of the verb ’to be’ is “is not” “are not”.

To form a sentence, it needs to add “not” after the verb.

For example: I am not a teacher.

The nagative form of the verb “to be”

verb “to be” The negative form
am am not
is isn’s
are aren’t
was wasn’t
were weren’t

Example

Simple Present tense form

The man isn't back.

I am not back.

They aren't back.

Simple Past tense form

He wasn't back.

They weren't back.

The Question and Answer of Sentence

  • Example 1

    Q: Is he a teacher?

    A: Yes, he is. / No, he isn't.

  • Example 2

    Q: Are you a teacher?

    A: Yes, i am. / No, i am not.

  • Example 3

    Q: Were they teachers?

    A: Yes, they were. / No, they weren't.

More Examples

  1. Question: Is he a doctor?

    Answer: No, he isn't.

  2. Question: Were they in the classroom yesterday?

    Answer: Yes, they were. \ No, they weren't.

  3. The negative form of the verb ’to be’ in the sentence

    • They weren't in the classroom yesterday.