It's possible that Ben will come round later. (might)
Ben might come round later.
I'm certain you'll pass all your exams. (definitely)
You'll definitely pass all your exams.
I might not go to school tomorrow. (may)
I may not go to school tomorrow.
George will probably know the answer. (think)
I think John will know the answer.
Wendy won't probably eat with us. (don't think)
I don't think Wendy will eat with us.
You'll definitely enjoy the film. (sure)
I'm sure you'll enjoy the film.
I doubt we'll go away this summer. (probably)
We won't probably go away this summer.
I don't think it'll rain tomorrow. (doubt)
I doubt it'll rain tomorrow.