the man ... waiting for her at the moment

The man is waiting for her at the moment.

The sentence is in the Present Continuous. Present Continuous is used for an action that takes place at the moment of speech. The key words of Present Continuous are now, at the moment. The auxiliary verb of Present Continuous is to be. Present Continuous is formed with the help of auxiliary verb and the suffix ing. Negative is formed with the help of not which stands after auxiliary verb.

 The man is not waiting for her at the moment.

Interrogative is formed Auxiliary + subject + verb+ing.

Is the man waiting for her at the moment?