Collocations for strong - adj.

be, feel, look | become, grow | make sb
All that outdoor work has made him very strong.

extremely, immensely, really, very | pretty, quite | enough
Don''t try to go back to work before you are physically strong enough.

physically

be, look

extremely, really, very | fairly, pretty, quite | enough
The box looks strong enough.

be, look, prove, seem, smell, taste | become, get, grow | remain | make sth | keep sth
This news helped keep the dollar relatively strong today.

extremely, immensely, particularly, really, very
He exerts an extremely strong influence on his classmates.

fairly, pretty, quite, rather | enough
The party lacks a strong enough local base.