appear, be, look, seem, sound
become
make sth
a development they believed would make nuclear war more likely

consider sth, deem sth, think sth
The doctors didn't think it likely that she would ever heal completely.

extremely, fairly, very, etc.
This match was never likely to be a classic.
It seems very likely that he will be forced to resign.

entirely, especially, highly, overwhelmingly, particularly
It is entirely likely that the company will make another offer.
It is highly likely that the factory will have to close.

increasingly
Juries became increasingly likely to acquit.

hardly
They're hardly likely to get home before ten.

reasonably
equally
disproportionately
Are black defendants disproportionately likely to be wrongfully convicted?

ever
the best deal they are ever likely to get

Likely is used with these nouns:
candidate, cause, consequence, contender, cost, culprit, demand, duration, effect, explanation, fate, impact, outcome, possibility, replacement, return, scenario, source, successor, suspect, target, victor, voter, winner

Likely is used with these verbs:
lead