ex 2 : đề bảo chia thì HTTD 
(+) S + be + V-ing

(-) S + be not + V-ing

(?) be + S + V-ing

1 is rainning

2 is getting

3 coming ( always + V-ing : cấu trúc này dùng để thể hiện sự phàn nàn của mk đối với hành vi của ai đó )

4 is taking

5 is getting - is rainning

6 am working

7 am reading

8 is - working 

9 is rising

10 am working

ex 3 : đề bảo chia thfi HTHT nha 

(+) S + have / has + VPII

(-) S + haven't / hasn't + VPII

(?) have / has + s + VPII

1 has learnt

2 haven't eaten

3 has never driven

4 have known

(+) S + is/am/are + V-ing 

(-) S + is/am/are + not + V-ing

(?) Am/is/are + S + V-ing ? 

1. is rainning

2. is getting

3. coming 

4. is taking

5. is getting - is rainning

6. am working

7 .am reading

8. is working 

9. is rising

10. am working

(+) S + have / has + Vpp

(-) S + haven't / hasn't + Vpp

(?) have / has + S  + Vpp

1 .has learned/ learnt

2. haven't eaten

3. has never driven

4. have known