1)
1.This is definitily not my cat.
2.Perhaps your brother can help you with your work.
3.That probably is a very famous painting.
4.We're probably going to see the dolphins.
5.Mom and Dad are definitely not going to buy another phone for me.
6. I'm not sure,but perhaps the bears over there.
2)
1.definitely
2.probably.
3.perhaps
4.not definitely
Удачи)