Modal of Likelihood or Probability include, Will, Might, May, Can, and Could. They are used to deducing and speculating about unknown situations. These modals are great for making Guesses or Predictions and depending on what one you use say how sure you actually are.
Affirmative
Subject + Modal + Base verb + Complement?
Negative
Subject + Modal + Not + Base verb + Complement.
Yes and No Questions
Modal + Subject + Base verb + Complement?
Wh Questions
Wh + Modal + Subject + Base verb + Complement?