I agree with Claire. I remember doing something = I did it and now I remember this. You remember doing something after you have done it. e.g. I know I locked the door. I clearly remeber locking it. (= I locked it and now I remember this.) 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. e.g. Please remember to post the letter. (= don't forget to post it.) The following verbs can be followed by -ing or to... : begin / start / continue / intend / bother But normally we do not use -ing after -ing: It's starting to rain. (NOT It's starting raining)

I remember ____ing means that I have a memory of this. e.g. When I was a child I got a bike for Christmas. I have a memory of this now. I remember getting a bike for Christmas when I was 8 years old. I remember to _____ means that I have to think of something before I do it. e.g. It is my sister's birthday at the weekend. I must remember to send her a birthday card. You remember DOING something AFTER you do it. You remember TO DO something BEFORE you do it.

I think the verb "remember" in the sentences act as the main verb and are supposed to be a normal verb that change its tenses accordingly. In your examples, "remember" will have the same meaning despite it is followed by a gerund (phrase) or to-infinitives. But honestly, I'm not sure if the verb "remember" qualifies to be followed by to-infinitives. look at these: "I love to sleep" (verb follwed by a to-infinitive) "I love sleeping." (verb followed by a gerund) the verb "love" here doesn't change, does it? :)

Hi you can say: remember, remembered, remembering, remembers and this site gives you a detailed explanation in table form http://www.uazone.org/friends/esl4rus/ingform.html