Question

помогите перевести в отрицательную и вопросительную форму
Present
1. I am writing a letter now
2. Mike is riding a bike now
3. We are listening our teacher at this moment
Past
1. Children where going to the club yesterday at 3 o'clock
2. My mother was buying products 3 days ago at midday
Future
1. She will be doing her homework tomorrow at 4 o'clock

Answer 1

I am not writing a letter now
Am I writing a letter now?

Answer 2

mike is not riding a bike now.
ls mike riding a bike now?
we are not listening our teacher at this moment...
are we listening our teacher...