Write down the negative and interrogative forms of the sentences in present simple: (+) my sister likes playing tennis. (+) sam and bob go to the park every sunday. (+) you often visit your grandparents.

My sister is like playing tenniss 
sam and Bob have going park every sunday 
you will often visit your grandparents
 по моему так )

My sister doesn't like playing tennis.
Does my sister like playing tennis?

S. and B. don't go to the park...
Do S. and B. go to the park...?

You don't often visit your grandparents.
Do you often visit your grandparents?