My parents finished painting my bedroom. Here ‘painting’ is -

Gerund after particular Finite Verbs:Mind, drop, practice, finish, delay, forbid, endure, excuse, consider, stop, fancy, suggest,present, prefer, deny, enjoy, miss, forgive, avoid, pardon.After these finite (principal) verbs --- if another verb (action word) sits, it takes the structure ofgerund (verb+ing).Example:a. We enjoyed playing football.b. We stopped working.c. I suggest doing it.d. She forbade doing this.e. I have finished reading.