`1`, go

`-` DHNB : usually -> chia THTĐ

`2`, went

`-` DHNB :yesterday -> chia TQKĐ

`-` go - went - gone : đi - đã đi 

`3`, was

`4`, cried

`5`, was

`6`, was 

`7`, cries ( never chia THTĐ)

`-` Cấu trúc khẳng định : S + V/Vs,es

`8`, didn't cry

`9`, enjoyed 

* Câu `3,4,5,6,8,9` chia TQKĐ vì đây là diễn tả những hành động đã xảy ra trong ngày hôm qua ( yesterday).

`-` Cấu trúc TQKĐ :

`+)` S + Ved/V2

`-)` S + didn't  +V

`?)` Did + S + V ?

`-` Thì HTĐ : 

`+` KĐ : S + Vs / es `-` S + is / am / are + adj / n

`+` PĐ : S + don't / doesn't + V `-` S + isn't / 'm not / aren't + adj / n

`+` NV : Do / Does + S + V `?` `-` Is / Am / Are + S + adj / n `?`

`=>` `DHNB` : usually , never , often , ...

`-` Thì QKĐ :

`+` KĐ : S + Ved / V2 `-` S + was / were + adj / n

`+` PĐ : S + didn't + V `-` S + wasn't / weren't + adj / n

`+` NV : Did + S + V `?` `-` Was / Were + S + adj / n `?`

`=>` `DHNB` : ago , last , yesterday , ...

`1`.go

`2`.went

`3`.was

`4`.cried

`5`.was

`6`.was

`7`.cries

`8`.didn't cry

`9`.enjoyed

`\text{# TF}`