1.1. Today: They are at cinema.

Yesterday: They were at cinema.

22 Today: I'm not happy 

Yesterday: I'm wasn't happy

33Today  The flim is scary

Yesterday: The flim was scary

44 Today: Is he in London

Yesterday: Was he in London

55Today: What is for lunch ?

Yesterday What was for lunch?

66 Today: George isn't very friend 

 Yesterday George wasn't very friendly

77 Today: Are they happy?

Yesterday Were they happy/

88 Today: It very hot

Yesterday It's was hot

Cấu trúc câu phủ định vớ động từ tobe Was, were.

+)Was dùng cho :he ,she,it,I'm

+)Were dùng cho We,you,they

Cấu trúc

+) S+was/were...

-)S+was/were+not...

?) Was/ Were + S +…?

Trả lời 

Yes, S + was/ were

No, S + wasn’t/ weren’t.