Question

Reescribir la SENTENCIAS EN FORMA NEGATIVA......AYUDAAAAAAAAA
PLISS
1.- ROBERT IS HELPING HIS SISTER
2.-YOU ARE DOING YOUR HOMEWORK
3.-MONICA TOOK A SHOWER THIS MORNING
4.-THEY WERE TALKIN ON THE PHONE
5.-I WAS IN MY HOUSE YESTERDAY
6.-THE STUDENTS,STUDIED FOR THE TEST
7.-I WAS A GOOD STUDENT LAST YEAR
8.- MY MOTHER COOKED A DELICIOUS FOOD
9.- MARIO HAD TWO PENCILS IN HIS BAGPAEK
10.-I'M TAKING NOTES FOR MY TEST

Answer 1

1.- ROBERT ISn't HELPING HIS SISTER 
2.-YOU AREn't DOING YOUR HOMEWORK
3.-MONICA didn't take A SHOWER THIS MORNING
4.-THEY WEREn't TALKIN ON THE PHONE
5.-I WASn't IN MY HOUSE YESTERDAY
6.-THE STUDENTS,didn't STUDy FOR THE TEST 
7.-I WASn't A GOOD STUDENT LAST YEAR
8.- MY MOTHER didn't COOK A DELICIOUS FOOD
9.- MARIO didn't HAve TWO PENCILS IN HIS BAGPAEK
10.-I'M not TAKING NOTES FOR MY TEST