how can I use to and for ?
in which cases can I use either to or for.
eg
I have good reasons to be happy
I have good reasons for being happy
I want example using the pattern
adjective+noun+to be +adjectives, if it is possible
thanks

Question

how can I use to and for ?
in which cases can I use either to or for.
eg
I  have good reasons to be happy
I have good reasons for being happy
I want example using the pattern 
adjective+noun+to be +adjectives, if it is possible
thanks

Answer

The pattern you want is 
...to    The inifinitive form in this case is 'be' (to be)

...for    The present participle form in this case in being.

He has no cause to quit at this point
He has no cause for quitting at this point

Both are correct.