Collocations for tough - adj.

be, seem
get
remain
find sth
He may find it tough to pursue his plans.

make sth
The strong dollar has made it tough for small businesses.

extremely, fairly, very, etc.
particularly, really
Things were really tough at first.

a little, slightly, etc.

on
It's very tough on the wives when the husbands leave.

be
become, get

extremely, fairly, very, etc.
particularly
enough
Has the government been tough enough on polluters?

on
The government has promised to get tough on crime.

with
You have to be tough with these young thugs.

appear, be, feel, look, seem, stand (informal)
become, get, grow
act, play, talk (all informal)
Then this guy started acting tough.

extremely, fairly, very, etc.
incredibly, really, remarkably
enough
Are you sure you're physically tough enough for this job?

mentally, physically

Tough is used with these nouns:
assignment, battle, beef, business, call, catch, challenge, choice, climb, competition, competitor, control, critic, decision, exterior, fight, game, guy, hide, job, law, legislation, line, luck, measure, meat, negotiation, negotiator, neighbourhood, opponent, part, penalty, problem, proposition, question, questioning, race, regulation, restriction, rival, road, season, situation, skin, stance, stand, steak, stretch, talk, target, task, test, time, training, week, work, world, year