How do I remember which verbs take -ing?

Learn them in groups, with an example each. Start with enjoy, avoid, finish, keep and suggest, which always take -ing.

What is the difference between I remember to lock and I remember locking?

Remember to lock is about a task you must do. Remember locking is a memory of something you already did.

Verb plus -ing / Verb plus to
Verb plus -ing	Verb plus to
I enjoy cooking.	I want to cook.
She avoids driving at night.	She decided to drive at night.
I stopped smoking. (I quit.)	I stopped to smoke. (I paused in order to smoke.)

Gerund and infinitive patterns
Pattern	Verbs	Example
Verb plus -ing	enjoy, avoid, finish, keep, mind, suggest, consider, practise	She avoids driving at night.
Verb plus to	want, need, decide, hope, plan, agree, promise, learn, afford, manage	We decided to leave early.
Either, same meaning	like, love, hate, start, begin, continue, prefer	He started working. He started to work.
Either, new meaning	stop, remember, forget, try, regret	Remember to lock it. I remember locking it.
After a preposition	interested in, good at, before, after, without	Before leaving, call me.

Spanish uses the infinitive after prepositions: antes de salir. English uses -ing: before leaving, not before to leave.
Suggest takes -ing: I suggest going, not I suggest to go.
Want takes a person plus to: I want you to come, not I want that you come.
Look forward to, be used to and object to use to as a preposition, so -ing follows: I'm looking forward to seeing you.

How do I remember which verbs take -ing?: Learn them in groups, with an example each. Start with enjoy, avoid, finish, keep and suggest, which always take -ing.
What is the difference between I remember to lock and I remember locking?: Remember to lock is about a task you must do. Remember locking is a memory of something you already did.

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