Gerunds and infinitives: (GERUNDS (After prepositions: In, at, on, upon,…
Gerunds and infinitives:
They're also used after some adjectives such as: easy,happy,sad, lucky and hard.
It's hard to make it real.
We often use the infinitive to talk about a purpose, why somebody does something.
They went to the restaurant before to reserve a table.
Used after certain verbs: decide, promise, hope, pretend,refuse, offer, agree, see, appear, choose, expect, learn, plan, wish, need, afford, claim, expect, fail...
He decided to bought the new laptop next week.
After prepositions: In, at, on, upon, below, up, under, below, above, over, along, beside, between...
He's happy about making new friends
As the subject if the sentence when talking about actions and facts in general.
Breathing in the forest is good for people that have lungs problems
As a direct object of some verbs: Finish, prefere, like, hate, dislike, avoid, suggest, recommend, miss, love...
I finish doing my homework
After some expressions: Can't stand, spend time, feel like, go on, don't mind, be/get used to, look forward to, it's no use, be bussy, how about, spend time...
I don't mind going to the mountain tomorrow
GERUND or INFINITIVE
Other verbs (remember, stop, forget, regret, try, learn, teach, keep, begin...) can be followed by either but its meaning changes.
They stopped thinking in what happened last week
They stopped to talk during an hour
Some verbs (like, love, hate, prefer, begin, start, intend, continue, advise, allow, recommend...) can be followed by either without a meaning changing.
You hate making new friends
You hate to make new friends