$\text{*Structure: thì QKĐ đối với đt thường}$

$\text{(+) S + Ved/V2 + ...}$

$\text{(-) S + didn't + Ved/V2 + ...}$

$\text{(?) Did + S + V-bare +...?}$

$\text{*Structure: thì QKĐ đối với tobe }$

$\text{(+) S + was/were + ...}$

$\text{(-) S + was/were not + ...}$

$\text{(?) Was/Were + S + ...?}$

$\text{*Structure: thì QKTD }$

$\text{(+) S + was/were + V-ing + ...}$

$\text{(-) S was/were + not + -Ving + ...}$

$\text{(?) Was/Were + S + V-ing + ...?}$

---------------------------------------------------------

`1.` was playing `-` entered

Giải thích: QKTD `-` QKĐ

`2.` was studying `-` came

Giải thích: QKTD `-` QKĐ

`3.` was washing `-` rang

Giải thích: QKTD `-` QKĐ

`4.` was eating `-`  were drinking

Giải thích: QKTD `-` QKTD

`5.` was watching `-` jumped 

Giải thích: QKTD `-` QKĐ

#chucbanhoctot

$#thaonguyeneakar$

`@` `Mikey3`

`1,` was playing-entered

`2,` was studying-came

`3,` was washing-rang

`4,` was eating-were drinking

`5,` was watching-jumped

____________________

`-` While + past/ present continous, past/ present countinous (dùng để diễn tả hai hành động xảy ra cùng lúc ở một thời điểm nào đó )

`-` When + past continous

    When + simple past

( dùng để diễn tả một hành động đang diễn ra thì có một hành động ngắn xen vào )