1.He is working now
He isn't working now
2.I am eating an apple
I am not eating an apple
3.We are writing a letter
We aren't writing a letter
4.Tom haves breakfast
Tom doesn't have breakfast
5.You are going at work
You aren't going at work
6.They are listing to music
They aren't listy to music
7.She is sitting on a sofa
She isny sitting on a sofa
8.Boys are playing football
Boys aren't playing football
9.Cat is drinking milk
Cat isn't drinking milk
10.People are reading books
People aren't reading books
вроде так
1.He is working now
He isn't working now
2.I am eating an apple
I am not eating an apple
3.We are writing a letter
We aren't writing a letter
4.Tom haves breakfast
Tom doesn't have breakfast
5.You are going at work
You aren't going at work
6.They are listing to music
They aren't listy to music
7.She is sitting on a sofa
She isny sitting on a sofa
8.Boys are playing football
Boys aren't playing football
9.Cat is drinking milk
Cat isn't drinking milk
10.People are reading books
People aren't reading books
вроде так