`1.` `(+)` Look! They (play) are playing football.

`(-)` Look! They aren't playing football.

`(?)` Look! Are they playing football?

- Look! : DH thì Hiện tại tiếp diễn.

`2.` `(+)` She (sweep) is sweeping the floor now.

`(-)` She isn't sweeping the floor now.

`(?)` Is she sweeping the floor now?

- now : DH thì Hiện tại tiếp diễn.

`3.` `(?)` What is she (do) doing now? (Câu này chưa rõ là làm gì nên không thể chuyển sang dạng phủ định và khẳng định được).

- now : DH thì Hiện tại tiếp diễn.

`4.` `(+)` She (wash) is washing the clothes at the moment.

`(-)` She isn't washing the clothes at the moment.

`(?)` Is she washing the clothes at the moment?

- at the moment : DH thì Hiện tại tiếp diễn.

`5.` `(+)` Listen! Peter and Daisy (sing) are singing now.

`(-)` Listen! Peter and Daisy (sing) aren't singing now.

`(?)` Listen! Are Peter and Daisy singing now?

- now : DH thì Hiện tại tiếp diễn.

`6.` `(-)` My brother (not watch) isn't watching TV now.

`(+)` My brother is watching TV now.

`(?)` Is your brother watching TV now?

- now : DH thì Hiện tại tiếp diễn

*Lưu ý : Khi chuyển từ câu khẳng định hoặc phủ định sang nghi vấn, my `->` your.

`7.` `(+)` He (study) is studying English this month.

`(-)` He isn't studying English this month.

`(?)` Is he studying English this month?

`8.` `(?)` Are you (work) working in the garden now?

`(+)` You are working in the garden now.

`(-)` You aren't working in the garden now.

- now : DH thì Hiện tại tiếp diễn.

`9.` `(+)` Peter (talk) is talking to Susan now.

`(-)` Peter isn't talking to Sunsan now.

`(?)` Is Peter talking to Susan now?

`10.` `(+)` She (listen) is listening to the radio in her bedroom at the moment.

`(-)` She isn't listening to the radio in her bedroom at the moment.

`(?)` Is she listening to the radio in her bedroom at the moment?

`----------`

`***` Cấu trúc thì Hiện tại tiếp diễn:

`(+)` S + am/is/are + Ving + O.

`(-)` S + am/is/are + not + Ving + O.

`(?)` Am/Is/Are + S + Ving + O?

1.

(+) Look! They (play) are playing football.

(-) Look! They aren't playing football.

(?) Look! Are they playing football?

2.

(+) She (sweep) is sweeping the floor now.

(−) She isn't sweeping the floor now.

(?) Is she sweeping the floor now?

1. chưa rõ

4.

(+) She (wash) is washing the clothes at the moment.

(-) She isn't washing the clothes at the moment.

(?) Is she washing the clothes at the moment?

5.

(+) Listen! Peter and Daisy (sing) are singing now.

(-) Listen! Peter and Daisy (sing) aren't singing now.

(?) Listen! Are Peter and Daisy singing now?

6.

(-) My brother (not watch) isn't watching TV now.

(+) My brother is watching TV now.

(?) Is your brother watching TV now?

7.

(+) He (study) is studying English this month.

(−) He isn't studying English this month.

(?) Is he studying English this month?

8.

(?) Are you (work) working in the garden now?

(+) You are working in the garden now.

(-) You aren't working in the garden now.

9.

(+) Peter (talk) is talking to Susan now.

(-) Peter isn't talking to Sunsan now.

(?) Is Peter talking to Susan now?

10.

(+) She (listen) is listening to the radio in her bedroom at the moment.

(-) She isn't listening to the radio in her bedroom at the moment.

(?) Is she listening to the radio in her bedroom at the moment?

Cấu trúc : 

(+) : S + BE + V-ING .

(-) : S + BE + NOT + V-ING .

(?) : BE + S + V-ING ?