Study the information about verb + -ing or to. Part 1
1. Some verbs can be followed by to and -ing with a difference of meaning.
I remember doing something = I did it and now I remember this. You remember doing something after you have done it.
I know I locked the door. I clearly remember locking it.
I remembered to do something = I remembered that I had to do it, so I did it. You remember to do something before you do it.
I remembered to lock the door, but I forgot to shut the windows.
I regret doing something = I did it and now I am sorry about it.
She regrets saying what she said.
I regret to say/to tell/to inform you = I am sorry that I have to say.
We regret to inform you that we cannot offer you the job.
Go on doing something = continue with the same thing:
We need to change. We can’t go on living like this.
Go on to do something = do or say something new:
After discussing the problem, he went on to talk about the project.
2. Use can use -ing and to after these verbs:
Begin, start, continue, bother, intend.
It has started raining or It has started to rain.