1. Was

Dùng thì QKĐ: S + was/were

2. Was having

When + S + QKĐ+...,+ S + QKTD +.....

3. Take

Sau Should + V

4. Reading 

Vì sau Fancy + V-ing

5. Have not finished

Dựa vào dấu hiệu: Yet (ta dùng thì hiện tại hoàn thành)

`1 ` : was

` -`  QKĐ tobe : S + was / were + ...

` - ` Lang Lieu là tên riêng ( số ít ) nên đi với be trong quá khứ là was

`2 `  : were having

` - `  Ta chia thì QKTD : S + was / were + V-ing

`- `  When + S + V-ed / V2 , S + was / were + V-ing

` 3 ` : take

` - `  S + should + V nguyên mãu : Ai đó nên làm gì

` 4 `  : reading

` -`  S + fancy / fancies + V-ing

` 5 `  : haven't finished

` -`  HTHT + yet : S + haven't / hasn't + VPII + yet