gerund and the infinitive

The gerund and the infinitive are forms of the verbs that act as names. The gerund is formed with "-ing" (walking, eating, etc.) the infinitive is formed with the preposition "to" (to walk, to eat, etc.).

applications

gerund

1.-After some verbs: deny, avoid, can not help, like, dislike, enjoy, mind, keep on, suggest, finish etc.

2.-After a preposition (normally it is about verbs or adjectives with obligatory preposition):

examples

He finished doing his homework.

I’m interested in learning English. // I’m fond of playing tennis.

Smoking is dangerous for your health.

When the verb is the subject of the sentence

infinitive

After some verbs like: would like, agree, decide, choose, plan, refuse, hope, want, manage etc.

After adjectives

examples

I’m happy to see you again.

I want to become a teacher.

I’m here to study English. // I have come to help you

To express an objective or why we are doing an action: