Cấu trúc:

(-) He/She/It + is + not + V_ing.
We/ You/ They + are + not + V_ing.

Ex: I'm not playing now.

 He isn't playing football now.

You aren't watching TV.

(?) V_to be (Am/ Is/ Are) + S + V-ing?
Cau nghi van
- Yes, I am hoac No, I am not
- Yes, she/ he/ it + is hoac No, she/ he/ it + is not

- Yes, we/ you! they + are hoac No, wel you! they + are not
Are you working right now? - No, I'm not. I'm staying at home.
Is Sarah having lunch at the moment? - No, she isn't.
Am I doing it right?

• Câu phủ định:
• Cấu trúc; CHỦ NGỮ + am/is/are + not + V - ing
• I am not watching TV now.
• They aren't watching the movie
• It is not raining. 

• Câu nghi vấn:
• Cấu trúc: TỪ HỎI + am/is/are + CHỦ NGỮ + V - ing + ?
• What are you doing?
• Who is she talking with on the phone?
• When are you leaving?
• $#lyler2009$