Герундий или инфинитив
1. Sheryl forgot her purse, so I lent her ten dollars. (take)
2. Lydia really regrets out of high school. She has really had to struggle to make a living because of that decision. (drop)
3. Did you remember your swimsuit? Our vacation in Hawaii won't be much fun if you can't go swimming. (pack)
4. If you can't find the key, try the lock with something else, like a knife or a screwdriver. (open)
5. I forgot that word in class. Now I remember! The teacher wrote it on the board and gave us several example sentences. (learn)