The document discusses the use of "can" and "can't" to express ability in English. It lists out the affirmative and negative forms of "can" for the first, second and third person singular and plural pronouns. It also provides examples of asking questions using "Can" followed by the pronoun and responding with either "Yes, (pronoun) can" or "No, (pronoun) can't".

1. CAN / CANNOT / CAN’T

2. I can
You can
He /she / it can
We can
You can
They can

3. I cannot I can’t
You cannot You can’t
He /she / it cannot He/ she/ it can’t
We cannot We can’t
You cannot You can’t
They cannot They can’t

4. Can I? Yes, I can/
No, I can’t.
Can you? Yes, you can /
No, you can’t
Can he/ she/ it? Yes, he can/
No, he can’t
Can we? Yes, we can/
No, we can’t
Can you? Yes, you can /
No, you can’t
Can they? Yes, they can /
No, they can’t.