Penggunaan Gerund Afer preposition

Daftar kata yang harus diiringi Gerung (V + ing)
About before after apart from instead of without	of from by in on

Misalnya : after (watch) TV, I close the door  -> WRONG

after watching TV, I closed the door

1. I got used to performing something  — > terbiasa to doing something
2. I have trouble to remembering something
3. Don’t hasitate to asking a question
4. He left without knowing things