1. GERUND & INF = DIFFERENCE IN MEANING
REMEMBER, REGRET, FORGET, STOP, TRY, MEAN, GO ON, COME, HELP

2. REMEMBER, REGRET & FORGET
+ TO INF = when the act comes first (‘I remember, then I do’)= acordarse de hacer algo.
I remembered to lock the door, so don’t worry! (me acordé de cerrar la puerta, así que no te preocupes)
+ GERUND = when the act comes second (I do sth, then I remember about it) = acordarse haber hecho algo
I don’t remember locking the door… Let’s go back and check! (No recuerdo haber cerrado la puerta… ¡volvamos a comprobar!) Notice that it’s the same: I don’t remember having locked the door.

3. REMEMBER, REGRET & FORGET
I regret to inform you that you have failed your exam (first I regret, then I inform you)
I regret saying what I said the other day… I’m really sorry. (I said something nasty, then I regret having done that).
Don’t forget to pick the children up at school = remember to pick them up.
I’ll never forget travelling to Africa with you. It was the most special moment in my life! = I’ll always remember the trip to Africa/travelling to Africa.

4. STOP + TO INF = Infinitive of purpose
I saw a woman who was carrying many bags, so I stopped (whatever I was doing) to help her. (= in order to)
+ GERUND= when you finish doing an activity (not necessarily forever).
She stopped smoking when she went into the hospital. After seeing the doctor, she was convinced to give it up.

5. TRY + TO INF = attempt + GERUND = experiment
I tried to open the window, but it’s stuck!
+ GERUND = experiment
A: It’s so hot in here!
B: Why don’t you try opening the window?

6. MEAN + TO INF= intend + GERUND = involve
I’ve been meaning to start my project, but I haven’t found time to do it!
+ GERUND = involve
Changing jobs also meant changing house.

7. GO ON +TO INF = To do something new.
After windsurf, he went on to learn karate.
+ GERUND = To continue an action in progress.
I would like to go on living on Mallorca. I love the island!

8. COME + TO INF = a change in perception. + GERUND = movement
I thought he was angry with me, but eventually I came to realize he was going through a serious depression.
+ TO INF = can also be an ‘inf. Of purpose’.
I came to watch a movie with you (‘in order to)
+ GERUND = movement
He came running to me to give me the good news.

9. HELP
+ TO INF/ BARE INF/ with + gerund = with actions, meaning ‘assist’.
I helped to make dinner = I helped make the dinner= I helped with making the dinner.
+ can’t help + GERUND = reaction beyond the subject’s control.
I can’t help laughing at the situation.
Those kids are very naughty, but I can’t help loving them.