Collocations for proud - adj.

be, feel, look, seem, sound | make sb

enormously, especially, extremely, fiercely, immensely, inordinately, intensely, more than a little, particularly, really, terribly, tremendously, very
She was fiercely proud of family traditions and continuity. | He was more than a little proud of himself.

almost
He seemed almost proud of his practical incompetence.

quite, rather | justifiably, justly, rightly | perversely
Londoners have long been perversely proud of a health service that does not serve them well.

quietly
He was not vain, but he was quietly proud of his literary achievements.

secretly

of
We are all really proud of you!

have every reason/right to be proud
All those involved have every reason to be proud of their achievement.