Certainty and doubt

A handful of adverbs carry you from certain to doubtful: biztosan ('certainly'), valószínűleg ('probably'), talán ('maybe') — just drop one in near the start of a sentence, word order doesn't need to change.

For a fuller opinion, pair lehet or kétlem with a hogy-clause from two lessons back: Lehet, hogy igazad van ('It's possible that you're right'), Kétlem, hogy eljön ('I doubt that he'll come').