`1.` aren't working (at the moment: DH thì HTTD)

`2.` are doing (now: DH thì HTTD)

`3.` are studying (Be quiet!: DH thì HTTD)

`4.` isn't doing - is watching

`5.` is walking (now: DH thì HTTD)

`6.` is raining

`7.` are you saying - are talking

`8.` isn't using (at the moment: DH thì HTTD)

`9.` are reading

`10.` is completing (now: DH thì HTTD)

`11.` is making (at the moment: DH thì HTTD)

`12.` is doing (now: DH thì HTTD)

`13.` am looking

`14.` isn't working (at the moment: DH thì HTTD)

`15.` am cleaning (now: DH thì HTTD)

`16.` is teaching (at present: DH thì HTTD)

`17.` are visting       

`->` Cấu trúc thì Hiện tại tiếp diễn:

`-` với động từ thường:

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

`(?)` S + am/is/are + not + V_ing

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

`+` Chủ ngữ: I `->` tobe "am"

`+` Chủ ngữ: You/ we/ they/ N(Số nhiều) `->` tobe "are"

`+` Chủ ngữ: She/ he/ it/ N(Số ít) `->` tobe "is"             

1.aren't working

2.are doing

3.are studying

4.isn't doing/is watching

5.is walking

6.is raining

7.are saying/are talking

8.isn't using

9.are reading

10.is completing

11.is making

12.is doing

13.am looking

14.isn't working

15.am cleaning

16.is teaching

17.are visiting

FORM: __HTTD__

(+) S+be+V-ing

(-) S+be not+V-ing

(?)Be+S+V-ing?