This tense is often used with the following time expressions:
... at the moment
... this morning / afternoon / evening
Subject + be + verb + ing + object(s) + time Expression
She's watching TV at the moment.
Subject + be + not (isn't, aren't) + verb + ing + object(s) + time Expression
They aren't having fun this morning.
(Question Word) + be + subject + verb + ing + object(s) + time Expression
What are you doing?
Take this present continuous quiz to check your understanding.
If you are a teacher, use this guide on how to teach the present continuous tense for more help.