What am I doing?
I am watching TV / I'm watching TV
Is he running?
No, he isn't running (he's walking)
What IS HE doing?
He is climbing / He's climbing
What are the birds doing?
They are flying / They're flying
What are they doing? (go to school)
They are going to school / They're going to school
What IS HE doing? (smile)
He is smiling / He's smiling
What IS HE doing?
He is running / he's running
Are they working?
No, they AREN'T working (they're playing)
Is HE climbing?
No, he isn't climbing (he's running)
What is she doing?
She is doing homework / She's doing homework
What are they doing?
They are eating dinner / They're eating dinner
What are they doing?
They are watching TV / They're watching TV
Are WE swimming?
No, we AREN'T swimming (we're learning English)
What are THEY doing?
They are playing / They're playing
What are THEY doing?
They are reading / They're reading
Are the birds walking?
No, they are not walking / They aren't walking (they're flying)
Is she playing?
No, she isn't playing (she's doing homework)
Is he smiling?
No, HE ISN'T smiling (he is crying)
What is he doing?
He is walking / He's walking