11. + I'm sitting (writing), you're sitting (writing), he/she's sitting (writing)...

    - I'm not sitting (writing), you are not sitting (writing), he/she isn't sitting (writing)...

   ? Am I sitting (writing), Are you sitting (writing), Is he/she sitting (writing)...?

12. 1- is doing 2- am sending 3- am not looking 4-is telling 5- are working 6- am cooking