Collocations for tough - adj.

be, seem | get

extremely, particularly, really, very | a bit, fairly, a little, pretty, quite
Things were pretty tough at first.

on
It''s very tough on the wives when the husbands go off like that.

be | become, get

extremely, particularly, very | fairly, pretty, quite | 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.

be, feel, look, seem | become, get, grow | act, talk
(both informal) Then this guy started acting tough.

incredibly, really, remarkably, very | pretty, quite, reasonably | enough
Are you sure you''re physically tough enough for this job?

mentally, physically