Collocations for happy - adj.

appear, be, feel, look, seem, sound
Outwardly the couple appeared happy.
Andrew felt happier than he had been for a long time.

become
make sb
Money won't make you happy.

keep sb
He went home from time to time, to keep his mother happy.

die
I can die happy knowing that I have achieved this.

extremely, fairly, very, etc.
only too, particularly
We'd be only too happy to accept your invitation.

completely, perfectly
Dad seemed perfectly happy with my explanation.

genuinely, truly
For the first time in her life, she felt truly happy.

far from, not altogether, not at all, not entirely, not exactly, not particularly, not too, not totally
Her boss was not entirely happy about the situation.

relatively
just
I'm just happy to be back home.

amazingly, blissfully, deliriously, ecstatically, ridiculously, strangely, surprisingly
clearly, obviously

about
I'm not too happy about her attitude.

for
So you're getting married, I hear. I'm really happy for you!

with
I was quite happy with the way things went.

be, seem

extremely, fairly, very, etc.
gloriously (esp. BrE), particularly, wonderfully
It had been a wonderfully happy time.

quite

Happy is used with these nouns:
accident, association, atmosphere, balance, chance, childhood, choice, coincidence, collaboration, combination, compromise, couple, customer, day, disposition, ending, event, face, family, girl, grin, home, hour, knack, laughter, life, marriage, memory, mood, news, occasion, old age, outcome, pair, people, period, person, relationship, retirement, return, reunion, self, shopper, situation, smile, tear, thought, time, tune, year