Positivas I have two good fathers 
you have a little dog 
we have many money 
they have a house big 
I have many friends 
negativas  -I do not have to wash the dishes 
- You do not have to do your homework 
- We do not have to study the lesson 
- He does not have to sing 
- It does not have to shout. 
interrogativas Why have you bought so many tulips?  Have you seen them lately?  Have you got any brothes?  Have you finished your homework?  Have you ever been to Paris?