3 - am doing (present continuous)
--> things happening right now
--> am/are/is + ing
- B) I am doing - he is talking - they are working
d
4 - present continuous (questions)
- A) am I doing? - are you working? - is he talking?
- B) am/are/is + subject + ing
- C) yes, I am - no, he isn't - yes, they are