`1` haven't had - dấu hiệu : yet

`2` didn't have - dấu hiệu : last week 

`3` went - dấu hiệu : this weekend (sự việc đã xảy ra)

`4` moved - dấu hiệu : in 2010

`5` Have/visited - dấu hiệu : ever

`6` has lived - dấu hiệu : for 2 years 

`7` Did/go - dấu hiệu : yesterday 

`8` have worked - dấu hiệu : 2001

`9` Have/seen - dấu hiệu : recently 

`10` broke - dấu hiệu : two years ago 

`+` Thì QKĐ : 

Động từ tobe : I/he/she/it chia was , we/you/they chia were

`-` S + was/were + ... 

`-` S + was/were + not + ... 

`-` Was/were + S + ... ? 

Động từ thường : 

`-` S + Ved/V2 + O 

`-` S + didn't + V-inf + O 

`-` Did + S + V-inf + O ? 

`+` Thì HTHT :

`-` S + has/have + Vpp + O 

`-` S + hasn't/haven't + Vpp + O 

`-` Has/have + S + Vpp + O ?