Finished actions, enjoyment, past memory, or general activities.
enjoy reading, finish working, avoid making mistakes, mind opening
avoid talking to him
Do you mind opening the door?
Future intentions, promises, plans, decisions, or purpose.
want to go, decide to buy, hope to pass, promise to help
decided not to come
Did you promise to help?
| Example / Question | Positive / Short Answer | Negative / Short Answer |
|---|---|---|
| Remember + V-ing | I remember meeting her. | Past memory |
| Remember + To V1 | Remember to call her. | Future duty |
| Stop + V-ing | Stop crying. | End activity |
| Stop + To V1 | Stopped to eat. | Pause in order to eat |
| Rule | Base / Standard Form | Applied Form |
|---|---|---|
| Core Difference Principle | V-ING focuses on real/past/ongoing experiences. TO-V1 focuses on future/intended/unfulfilled actions. | enjoy swimming (real experience) vs hope to swim (future intention) |
| Preposition Always Takes V-ing | Any verb immediately following ANY preposition must be in V-ing form. | interested in learning (NOT "interested in to learn") |
| Negative Forms Position | Place "not" directly BEFORE the gerund or infinitive: "enjoy NOT working" or "decide NOT to go". | not working vs not to go |
Match the verb to its required pattern based on verb lists.
Use stop, remember, forget, try accurately to convey exact timeline.
Follow all preposition phrases with gerunds.
Verbs of preference like "love", "like", "hate", "start", and "begin" can take either V-ing or To-V1 with virtually identical meaning (e.g., "I love reading" = "I love to read").
"Forget to lock" means you did NOT lock it. "Forget locking" means you locked it, but you don't remember that you did it.
Because "to" in "look forward to" is a PREPOSITION (not part of an infinitive)! All prepositions are followed by V-ing: "I look forward to HEARING from you."