Present simple ( tobe ) : Past simple ( tobe ) :
1, ( + ) It's very hot today. ⇒ It was very hot two days ago.
2, ( - ) She isn't a teacher. ⇒ She wasn't a teacher last month.
3, ( ? ) Where are you from ? ⇒ Where were you from ?
Present simple ( V thường ) : Past simple ( V thường ) :
1, ( + ) She wears a dress ⇒ She wore a dress
2, ( - ) I don't like play a chess ⇒ I didn't like played a chess.
3, ( ? ) When do they go to the cinema? ⇒ When did they went to the cinema ?