Have we really studied this topic before? I forget reading about it.
I regret to tell you that the train has been delayed.
In this case, we stop something in order to do simething else. (infinitive)
I regret going to bed so late. I'm really tired today.
This is when you are sorry about something you did in the past and you wish you hadn't done it. (gerund)
I remember going to the beach when I was a child.
This is when you remember something that happened in the past. (gerund)
I stopped working when I was expecting a baby.
It's when you forget about a memory, something that you did in the past. (gerund)
When we stop doing something, it means the verb in the gerund is the thing that we stop. It can mean "stop forever" or "stop at that moment". (gerund)
I forgot to call my mother.
It's when you want to do something, but you forget about it. (infinitive)
This is when you think of something that you need to do. (infinitive)
She was shopping and stopped to get a cup of coffee.
I remembered to buy milk.
We use this construction when we are giving someone bad news, in quite a formal way. The verb is almost always something like "say" or "tell" or "inform". (infinitive)
