If something is likely, it will probably happen or is expected. It is more affirmative or nearness in possibility = high probability. It may refer to past events with known outcomes.

USAGE: normally used as an adjective (it may be used as an adverb as well)

EXAMPLE:
He is likely to come at noon. (likely indicates more possibility)
I am likely to go on holiday in summer.
My boss is likely to let me work remotely.
Emma’s likely to react very emotionally.
Do remind him, because they are likely to forget.
She’s likely to win the competition.
The study showed that one in three children is likely to develop drug addiction.
The car is likely to break down soon.