`1`. am not drinking

`2`. is buying

`3`. isn't studying

`4`. Is she running

`5`. is eating

`6`. are you waiting

`7`. aren't trying

`8`. are having

`9`. are travelling

`10`. is drinking

`11`. is speaking

___________________________________________________

Cấu trúc thì HTTD:

`+)` S + am/is/are + V_ing...

`-)` S + am/is/are + not + V_ing...

`?)` (Wh) + Am/Is/Are + S + V_ing...?

`1.` am not drinking

`2.` is buying

`3.` isn't studying

`4.` Is she running 

`5.` is eating

`6.` are you waiting 

`7.` aren't trying

`8.` are having

`9.` are traveling

`10.` is drinking

`11.` is speaking 

`@` HTTD:

`(+)` I `+` am`+` Ving

You/they/we `+` are `+` Ving

She/he/it/N `+` is `+` Ving

`(-)` I `+` am`+` not `+` Ving

You/they/we `+` are `+` not `+` Ving

She/he/it/N `+` is `+` not `+` Ving

`(?)` Am `+` I `+` Ving`?`

Are `+` They/you/we/Ns `+` Ving`?`

Is `+` she/he/it/N `+` Ving`?`

`DHNB:` At the moment`,` at present`,` now, Look!, Keep silent!`,...`

`+` Hành động đang xảy ra

`+` Thu hút sự chú ý `->` Hành động đang xảy ra

`+` Dự định, kế hoạch trong tương lai (Khả năng xảy ra cao)