Collocations for sure - adj.

be, feel, seem, sound
You don''t seem very sure to me.

make
Make sure no one finds out about this.

make sb
What makes you so sure she''ll come back to you?

absolutely, completely, damned, quite | doubly
To make doubly sure they would not be disturbed she turned the key in the lock.

not altogether, not entirely, not quite, not really
I''m not altogether sure he would appreciate your efforts.

fairly, pretty

about
Pottz was confident of taking the American title, but less sure about the world championship.

of
You''d better be completely sure of your facts.