sentence construction - Using the continuous or the infinitive form of a verb when is used as a noun/complement

I believe the following to be wrong:

"I don't commit enough to learn English"

Surely the continuous form is correct:

"I don't commit enough to learning English"

Or, maybe even better:

"I don't commit enough to the learning of English"

But I am unsure of what rules are determining the above use, because I believe we can have the following:

"I don't like to eat raw fish"

In this phrase the use of the infinitive form "to eat" seems to work fine.

Is it that some verbs are not usable in the infinitive form?