the difference between to and for

[Huda2]

hi,
some times, I don't find a contingents between "to" and "for" as the following :

Mother Trisa dedicate her life to helping the poor.

here to is used as purpose , while we are knowing that "for" it should be used for purpose :
Mother Trisa deducate her life for helping the poor.

thanks

[Kitosdad]

Her efforts were directed to / towards helping the poor.
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[Huda2]

but dedicate isn't motion verb,isn't it?
to, towards are often used with motion verbs

[Morteza]

Hi,
As well as grammar,there are some formulas,which we should know and respect,in the structure of the sentences specially for verbs.
For this reason,"to" is correct.However,"for" seems to be right.
Regards,
Morteza

[Kitosdad]

In spite of the rules of grammar, English, like most languages, is full of conflictions. Unfortunately you just have to accept them. I am not a teacher, and I cannot argue that it is correct 100%, I just KNOW it is.

ps. By conflicts I mean right/wrong.Some meanings just overlap. What appears correct in one situation is not correct in all situations. This is one of those situations.
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