1. Infinitive and Gerund

2. There are certain words in English that are usually followed by an infinitive or gerund. If you are not sure whether to use the infinitive or gerund, read carefully!

3. gerund
After certain verbs and expressions:
Admit, avoid, can´t help, can´t stand, carry on, deny, enjoy, fancy, finish, give up, keep on, imagine, involve, mind, miss, postpone, practise, risk, stop, suggest.

4. Infinitive (with to)
After certain verbs and expressions:
Agree, appear, be able to, can´t afford, can´t wait, decide, expect, happen, have (got), help, learn, manage, offer, plan, pretend, promise, refuse, seem, teach, tend, threaten, want,
would like.

5. Infinitive (without to)
After modal verbs:
Can, may, might, must, should, had better, would rather and after the verbs make and let.

6. Some notes In the passive, make+inf. with to.
My boss makes us work hard /
At school we were made to wear a uniform.
Some verbs are followed by inf. or gerund with no change of meaning (begin, start, continue).
Like, love, hate and prefer, can also be used with either:
I like skiing (in general)
I like to ski in February or March (specific)

7. I remember buying him a present.
Make sure you remember to pick up some eggs at the super market.
Mary forgets meeting Tim in Italy.
Don't forget to lock the door when you leave on vacation.
Peter regrets moving to Chicago.
I regret to inform you that you haven't been accepted to the school.
Have you tried using butter instead of oil?
You need to try to correct your mistakes.
Jason stopped playing the piano at six.
Jason stopped to play the piano at six.
Margaret went on speaking about her vacation.
Margaret went on to speak about her vacation

8. Gerund or infinitive with change of meaning

9. Tests on Infinitive and Gerund