How do we make the Present Continuous Tense?
The structure of the present continuous tense is:
subject + auxiliary verb + main verb
be base + ing
Look at these examples:
subject auxiliary verb main verb
+ I am speaking to you.
+ You are reading this.
- She is not staying in London.
- We are not playing football.
? Is he watching TV?
? Are they waiting for John?
Use of Present Continuous Tense »
http://www.englishclub.com/grammar/v...ntinuous_s.htm