Affirmative form

I eat pizza on Saturdays

He eats pizza on Saturdays

Negative form

I don't eat pizza on Saturdays.

He doesn't eat pizza on Saturdays

Interrogative form

Do you eat pizza on Saturdays? Yes, I do/ No, I don't.

Does he eat pizza on Saturdays? Yes, he does/ No, he doesn't

Affirmative form

I am eating pizza now.

He is eating pizza now.

Negative form

I am not eating pizza now.

He isn't eating pizza now.

Interrogative form

Are you eating pizza now? Yes, I am/ No,I am not.

Is he eating pizza now? Yes, he is/ No, he isn't.

Affirmative form

Regular verbs

I walked to school yesterday.

Irregular verbs

I ate pizza yesterday.

Negative form

Regular verbs

I didn't walk to school yesterday.

Irregular verbs

I didn't eat pizza yesterday

Interogative form

Regualr verbs

Did you walk to school yesterday? Yes, I did / No, I didn't.

Irregular verbs

Did you eat pizza yesterday? Yes, I did/ No, I didn't.

Affirmative form

I was studying when the telephone rang.

Negative form

He wasn't studying when the telephone rang.

Interogative form

Were you studying when the telephone rang? Yes, I was / No, I wasn't.

Affirmative form

I will go to London next summer

Negative form

I won't go to London next summer

Interrogative form

Will you go to London next summer?

Affirmative form

I am going to play tennis this afternoon.

Negative form

We areb't going to play tennis this afternoon.

Interrogative form

Is she going to play tennis this afternnon?