With most verbs, gerund or infinitive is just a fixed rule. But with remember, forget, stop, try, and regret, the choice changes what the sentence means.
What you'll learn
For most verbs, whether they take a gerund or an infinitive is just a fact to memorize (see Verb Patterns). But a small group of verbs allow BOTH forms — and switching between them changes the sentence's actual meaning, not just its style.
Remember/forget + gerund looks BACK at something that already happened — a memory (or lack of one). Remember/forget + infinitive looks FORWARD to something that needs to be done.
Stop + gerund means ending a habit or activity entirely. Stop + infinitive means pausing one activity in order to do something else — the infinitive shows the PURPOSE of stopping.
Try + gerund suggests an experiment — doing something to see if it solves a problem. Try + infinitive suggests making an effort at something genuinely difficult.
Regret + gerund expresses sorrow about something already done. Regret + infinitive is a formal way to introduce bad news you're about to give.
A memory of something that already happened needs the gerund, not the infinitive.
'Stopped to smoke' actually means you paused something else in order to smoke — the opposite of quitting.
For a quick experiment to solve a problem, use try + gerund, not try + infinitive.
"The Wi-Fi still isn't working."
"Did you try restarting the router? Sometimes that fixes it."
"Yeah, I tried unplugging it for a minute. Still nothing."
"Okay, let's try calling support then."
Exercise 1 · Choose the correct meaning
'I remember locking the door' means:
Exercise 2 · Choose the correct meaning
'Remember to lock the door' means:
Exercise 3 · Choose the correct meaning
'I stopped smoking' means:
Exercise 4 · Choose the correct meaning
'I stopped to smoke' means:
Exercise 5 · Choose the correct meaning
'Try restarting the computer' means:
Exercise 6 · Choose the correct meaning
'Try to open the jar' (it's stuck) means:
Exercise 7 · Choose the correct meaning
'I regret to inform you...' means:
Exercise 8 · Choose the correct meaning
'I regret telling him the secret' means:
Exercise 9 · Complete the sentence
Complete (memory of a past action): 'I remember ___ (meet) her at a conference years ago.'
Exercise 10 · Complete the sentence
Complete (future duty/reminder): 'Please remember ___ (send) that email before noon.'
Exercise 11 · Sort into groups
0 / 4 sorted
Five quick questions to check what stuck.
Question 1 / 5
Score: 0/0
'He forgot to lock the door' means:
Bare Infinitive
Learn when the infinitive drops 'to' — after modal verbs, after let and make, and in a few fixed expressions.
Verb + Object + Infinitive
Learn the pattern verb + person + to-infinitive, used with want, ask, tell, advise, and many other verbs.
Verb Patterns
Learn the three groups of English verbs — gerund only, infinitive only, and verbs that allow both — and how to tell them apart.
Infinitives
Learn how to + verb expresses purpose, follows certain adjectives, and completes a large group of common verbs.