I'll never forget to see/ seeing the Grand Canyon for the first time.

I need to call/ calling the helpline. My computer has crashed.

Have you tried to take/ taking a tablet to help you sleep?

I must have my keys somewhere. I can remember to lock / locking the door this morning.

I had to run home because I had forgotten to turn/turning the oven off.

Our house needs to paint/ painting· Do you know any good house painters?

Did you remember to send/ sendinB your sister a card? It's her birthday today

We tried to learn/ learninB to ski last winter, but we weren't very good at it.