How to remember Gerunds & Infinitives?

[anhtu]

Hi all teachers.
Could you tell me some tips to remember Gerunds and Infinitives for a long time. Thanks

[Mister Micawber]

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Gerunds are verb forms ending in -ing and used as nouns.
Infinitives are the dictionary form of the verb, and may appear with or without a prefatory particle 'to'.
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[Humble]

Hello, anhtu,
I'm afraid the only way is cramming. If you learn a list, for example
admit
avoid
look forward to
it's difficult to remember. It is always better to anchor it to some context. I suggest cramming phrases instead:
He admits being indifferent to art.
I avoid dealing with such people.
My sister looks forward to visiting Liverpool.
In addition try to make several sentences of your own with each of these verbs.
Best wishes

[RonBee]

Gerunds are nouns that look like verbs (or verbs used as nouns; take your pick). Infinitives are verb forms.

I am painting a picture.
I like that painting.

(Since the infinitive is usually considered the "to" form of a verb ("to paint") it is hard for me to see how anybody can get them confused.)

[riverkid]

My guess, though I may well be wrong, is that Anhtu wanted to know how and when to use them.