● After certain verbs.
● After prepositions.
● When the gerund is the
subject or the object.
● I enjoy singing.
● I drank a cup of coffee before leaving.
● Swimming is good exercise.

● After certain verbs.
● After many adjectives.
● To show purpose.
● We decided to leave.
● It’s difficult to get up early.
● I came to London to study
English.

● After modal verbs.
● After let, make, help
(sometimes).
● After some verbs of perception
(see, watch, hear, notice, feel, sense).
● After expressions with why.
● I can meet you at 6 o’clock.
● The teacher let us leave early.
● I watched her walk away.
● Why go out the night before the exam?

REMEMBER + GERUND
● Remember something in the past
He remembers being happy in his childhood.
FORGET + GERUND
● Forget about a memory.
I told my brother that we’d spent
Christmas at Granny’s house in
1985, but he’d forgotten going there.
REMEMBER + TO INFINITIVE
● Think of something you need to do and do it.
I remembered to buy the milk.
FORGET + TO INFINITIVE
● You want to do something but you forget about it.
I forgot to call my mother.

TRY + GERUND
● Do something as an experiment, to check the consequences. It’s something not difficult to do.
I wanted to stop smoking, so I tried using nicotine patches.
TRY + TO INFINITIVE
● What you want to do is difficult. a) Present , future: you may not succeed in doing it.
b) Past: you made an effort to do it, but you didn’t succeed.
I’ll try to carry the suitcase, but it looks to heavy for me.
She tried to catch the bus, but she couldn’t run fast enough.

STOP + GERUND
● The verb in the gerund is the thing that we stop (forever or at that moment).
I stopped working when I was expecting a baby.
I stopped smoking (I gave up cigarettes / threw away my cigarette at that moment).
STOP + TO INFINITIVE
● We stop something else in order to do the verb in the infinitive.
I stopped to eat lunch (I stopped something else, maybe working or studying, because I wanted to eat lunch).
I stopped to smoke (I stopped doing something else because I wanted to have a cigarette).

1.
I couldn’t sleep so I tried … (drink) some hot milk.
drinking
2.
She tried … (reach) the book on the high shelf but she was too small.
to reach
3.
They tried … (get) to the party on time but the bus was delayed.
to get
4.
We tried … (open)the window, but it was so hot outside it didn’t help.
opening
5.
He tried … (get) a job in a newspaper firm but he still wasn’t satisfied.
getting

1.
You should stop … (smoke), it’s not good for your health.
smoking
2.
We stopped … (study) because we were tired.
studying
3.
They will stop … (have) lunch at twelve.
to have
4.
We stopped … (have) a rest because we were really sleepy.
to have

1.
Oh no! I forgot … (buy) milk.
to buy
2.
Please don’t forget … (pick up) some juice on your way home.
to pick up
3.
I remember … (go) to the beach as a child.
going
4.
Do you remember … (eat) steak in that little restaurant in Rome?
eating