Certain verbs accept either a gerund or infinitive, each conveying distinct meanings.

Forget

  • I think we forgot to lock the door when we left. (we forget to do it.)
  • I’ll never forget walking on that amazing beach for the first time. (the memories we will not forget.)

Remember

  • He didn’t remember to turn off the heating after class. (need to do)
  • I remember eating on this same chair the day I graduated. (talk about memories)

Try

  • I’ll try to convince him, but I’m not sure that’s going to change anything. (make an effort to achieve)
  • Why don’t you try drinking a glass of hot milk? (try something as an experiment to see if it helps)

Stop

  • We had to stop to eat something and go to the toilet. (Stop doing something and start doing a different thing)
  • I need to stop smoking once and for ever. (Stop doing something)

Need

  • I need to see you immediately. (it’s necessary to do)
  • Your car needs cleaning. (something needs to be done)

References