Joke Collection Website - Talk about mood - English past tense is changed into negative sentence, general question, no, affirmative answer, please help us to have a look and discuss.

English past tense is changed into negative sentence, general question, no, affirmative answer, please help us to have a look and discuss.

1. All the students are in the classroom.

Not all the students are in the classroom.

General question: Are all the students in the classroom?

The affirmative answer: Yes.

Negative answer: No, they are not.

I went to school yesterday.

I didn't go to school yesterday.

General question: Did you go to school yesterday?

Answer in the affirmative: Yes, I did. ..

Negative answer: No, I didn't.

Please have a look. Is there a problem? Thank you for your explanation.