What Are Gerunds and Infinitives?
Both gerunds and infinitives are verb forms that function like nouns in sentences.
Gerund: verb + -ing (swimming, reading, working)
- I enjoy swimming.
Infinitive: to + base verb (to swim, to read, to work)
- I want to swim.
The challenge: Some verbs are followed by gerunds, some by infinitives, and some by either! You need to learn which verbs take which form.
Gerunds (verb + -ing)
Gerunds look like the present continuous but function as nouns.
How to Form Gerunds
Most verbs: add -ing
- swim → swimming
- read → reading
- work → working
Verbs ending in -e: drop -e, add -ing
- make → making
- write → writing
- come → coming
Short verbs: double the final consonant
- run → running
- stop → stopping
- swim → swimming
When to Use Gerunds
As the subject of a sentence:
- Swimming is good exercise.
- Reading books is relaxing.
- Learning English takes time.
After certain verbs (see list below):
- I enjoy swimming.
- She finished reading the book.
- They avoid eating fast food.
After prepositions:
- I'm interested in learning Spanish.
- She's good at cooking.
- Thank you for helping me.
- We're thinking about moving to Berlin.
In fixed expressions:
- It's no use crying over spilled milk.
- It's worth visiting that museum.
- I can't help laughing.
- I don't mind waiting.
Infinitives (to + verb)
The infinitive is the base form of the verb with "to."
When to Use Infinitives
After certain verbs (see list below):
- I want to go home.
- She decided to study medicine.
- They hope to travel next year.
To express purpose (why you do something):
- I went to the store to buy milk. (why? to buy milk)
- She's studying to pass the exam. (why? to pass)
- We're saving money to buy a house. (why? to buy)
After adjectives:
- I'm happy to help you.
- It's difficult to understand.
- She's ready to leave.
- We're excited to see you.
After "too" and "enough":
- I'm too tired to work. (too + adjective + to)
- She's old enough to drive. (adjective + enough + to)
- It's too expensive to buy.
After question words (how, what, where, when, who):
- I don't know what to do.
- She told me how to cook pasta.
- We decided where to go.
- He explained when to arrive.
Verbs Followed by Gerunds
These verbs are ALWAYS followed by a gerund, not an infinitive:
Common gerund verbs:
- enjoy: I enjoy reading.
- finish: She finished working at 6 PM.
- avoid: He avoids eating sugar.
- miss: I miss living in Paris.
- mind: Do you mind waiting?
- suggest: I suggest taking a taxi.
- recommend: I recommend trying the pasta.
- keep: Keep walking straight.
- practice: She practices playing piano every day.
- consider: We're considering moving to Berlin.
- imagine: Can you imagine living there?
- deny: He denied stealing the money.
- admit: She admitted making a mistake.
List of common gerund verbs: enjoy, finish, avoid, miss, mind, suggest, recommend, keep (continue), practice, consider, imagine, deny, admit, risk, postpone, delay
Examples:
- I enjoy listening to music.
- She finished doing her homework.
- They avoid drinking coffee at night.
- We miss seeing you.
Verbs Followed by Infinitives
These verbs are ALWAYS followed by an infinitive (to + verb):
Common infinitive verbs:
- want: I want to go home.
- need: She needs to study.
- decide: We decided to leave.
- hope: They hope to win.
- plan: I plan to visit Paris.
- expect: I expect to arrive at 6 PM.
- would like: I'd like to have coffee.
- refuse: He refused to help.
- promise: I promise to call you.
- offer: She offered to help me.
- agree: They agreed to come.
- manage: I managed to finish on time.
- afford: We can't afford to buy a house.
- seem: She seems to be happy.
- appear: He appears to know the answer.
- pretend: He pretended to be sick.
List of common infinitive verbs: want, need, decide, hope, plan, expect, would like, refuse, promise, offer, agree, manage, afford, seem, appear, pretend, learn, fail, choose, prepare
Examples:
- I want to learn Spanish.
- She decided to quit her job.
- We hope to see you soon.
- They refused to help.
Verbs Followed by Either (Same Meaning)
Some verbs can be followed by EITHER a gerund OR an infinitive with NO change in meaning:
Same meaning:
- like: I like swimming = I like to swim
- love: She loves reading = She loves to read
- hate: He hates waiting = He hates to wait
- prefer: I prefer walking = I prefer to walk
- start: It started raining = It started to rain
- begin: She began crying = She began to cry
- continue: They continued working = They continued to work
List: like, love, hate, prefer, start, begin, continue
Examples:
- I like watching TV. = I like to watch TV. ✅
- She started learning English. = She started to learn English. ✅
Verbs Followed by Either (Different Meaning!)
IMPORTANT: Some verbs can take both, but the MEANING CHANGES:
STOP
stop + gerund = quit doing something (you were doing it, now you don't)
- I stopped smoking. (I don't smoke anymore)
- She stopped working at 5 PM. (she finished work)
stop + infinitive = stop in order to do something (you stop one thing to do another)
- I stopped to smoke. (I paused what I was doing to have a cigarette)
- She stopped to buy coffee. (she paused her journey to buy coffee)
Compare:
- I stopped smoking. (I quit - I don't smoke anymore)
- I stopped to smoke. (I paused to have a cigarette)
REMEMBER
remember + gerund = recall something that happened (memory of past)
- I remember meeting him. (I have a memory of when I met him)
- Do you remember going there? (do you recall the trip?)
remember + infinitive = don't forget to do something (future obligation)
- Remember to call your mother! (don't forget - you need to call)
- I remembered to lock the door. (I didn't forget)
Compare:
- I remember locking the door. (I have a memory of doing it)
- I remembered to lock the door. (I didn't forget to do it)
FORGET
forget + gerund = not remember something that happened (memory of past)
- I'll never forget meeting you. (I'll always remember when I met you)
- I forgot meeting him. (I don't remember meeting him)
forget + infinitive = not remember to do something (future obligation)
- I forgot to call her! (I didn't remember - I didn't do it)
- Don't forget to lock the door. (don't fail to lock it)
Compare:
- I forgot locking the door. (I don't remember doing it - did I lock it?)
- I forgot to lock the door. (I didn't lock it - I forgot)
TRY
try + gerund = experiment, test something as a possible solution
- I tried taking aspirin for my headache. (I tested it to see if it would help)
- Try adding some salt. (experiment - see if it improves the taste)
try + infinitive = make an effort, attempt to do something difficult
- I tried to open the window, but it was stuck. (I made an effort)
- She's trying to learn German. (she's making an effort)
Compare:
- Try drinking water. (test if it helps - suggestion)
- Try to drink more water. (make an effort)
GO ON
go on + gerund = continue the same activity
- He went on talking for hours. (he continued talking)
- After a pause, she went on reading. (continued the same activity)
go on + infinitive = move to the next stage/activity
- After finishing school, he went on to study at university. (next stage)
- She went on to become a famous writer. (next stage in life)
REGRET
regret + gerund = feel sorry about something you did (past)
- I regret telling him. (I'm sorry I told him - I did it)
- She regrets buying that car. (she's sorry she bought it)
regret + infinitive = formal announcement of bad news (formal)
- We regret to inform you that... (formal - announcing bad news)
- I regret to say that the position is filled. (formal)
Preposition + Gerund
After ALL prepositions, we use the gerund (never infinitive).
Common patterns:
be + adjective + preposition + gerund:
- interested in doing
- good at playing
- tired of waiting
- excited about going
- afraid of failing
- responsible for organizing
Examples:
- I'm interested in learning Spanish.
- She's good at cooking.
- We're tired of waiting.
- He's excited about traveling.
Verb + preposition + gerund:
- think about doing
- talk about doing
- dream of doing
- insist on doing
- apologize for doing
- thank someone for doing
Examples:
- I'm thinking about moving to Berlin.
- She apologized for being late.
- Thank you for helping me.
Other expressions:
- instead of doing
- without doing
- before doing
- after doing
- by doing (method)
Examples:
- I stayed home instead of going out.
- She left without saying goodbye.
- Wash your hands before eating.
- After finishing work, I went home.
- You learn by practicing.
Common Mistakes
Mistake 1: Using infinitive after "enjoy"
- ❌ I enjoy to swim.
- ✅ I enjoy swimming.
Mistake 2: Using gerund after "want"
- ❌ I want going home.
- ✅ I want to go home.
Mistake 3: Using infinitive after prepositions
- ❌ I'm interested in to learn Spanish.
- ✅ I'm interested in learning Spanish.
Mistake 4: Confusing "stop doing" and "stop to do"
- ❌ I stopped to smoke. (if you mean you quit)
- ✅ I stopped smoking. (quit)
Mistake 5: Using gerund for purpose
- ❌ I went to the store for buying milk.
- ✅ I went to the store to buy milk. (purpose - use infinitive)
Practice Examples
Choose gerund or infinitive (answers at bottom):
- I enjoy _______ (read) books.
- She wants _______ (travel) to Japan.
- We finished _______ (do) our homework.
- They decided _______ (buy) a new car.
- I'm good at _______ (cook).
Choose the correct form (different meanings):
- I stopped _______ (smoke). [I quit]
- I stopped _______ (smoke). [I paused to have a cigarette]
- Remember _______ (call) your mother! [don't forget]
- I remember _______ (meet) him. [I recall]
Complete with gerund or infinitive:
- I'm interested in _______ (learn) Spanish.
- She offered _______ (help) me.
- We avoid _______ (eat) fast food.
- He seems _______ (be) happy.
- I can't afford _______ (buy) that.
Correct the mistakes:
- I enjoy to swim.
- She wants going home.
- We're interested in to learn English.
- I went to the store for buying milk.
- He suggested to take a taxi.
Choose gerund or infinitive (same or different meaning?):
- I like _______ (swim). [gerund or infinitive - same]
- I tried _______ (call) her, but she didn't answer. [made an effort]
- Try _______ (add) some salt. [experiment]
Complete the sentences:
- I'm thinking about _______ (move) to Berlin.
- We hope _______ (see) you soon.
- She's tired of _______ (wait).
Answers: 1. reading, 2. to travel, 3. doing, 4. to buy, 5. cooking, 6. smoking (quit), 7. to smoke (paused), 8. to call (don't forget), 9. meeting (recall), 10. learning, 11. to help, 12. eating, 13. to be, 14. to buy, 15. I enjoy swimming., 16. She wants to go home., 17. We're interested in learning English., 18. I went to the store to buy milk., 19. He suggested taking a taxi., 20. swimming or to swim (both correct - same meaning), 21. to call, 22. adding, 23. moving, 24. to see, 25. waiting
Quick Reference Lists
Verbs + Gerund ONLY
enjoy, finish, avoid, miss, mind, suggest, recommend, keep, practice, consider, imagine, deny, admit, risk, postpone, delay
Example: I enjoy reading.
Verbs + Infinitive ONLY
want, need, decide, hope, plan, expect, would like, refuse, promise, offer, agree, manage, afford, seem, appear, pretend, learn, fail, choose, prepare
Example: I want to go.
Verbs + Either (Same Meaning)
like, love, hate, prefer, start, begin, continue
Example: I like swimming = I like to swim
Verbs + Either (Different Meaning!)
| Verb | + Gerund | + Infinitive |
|---|---|---|
| stop | quit (stopped smoking = quit) | pause to do (stopped to smoke = paused) |
| remember | recall past (remember doing) | don't forget future (remember to do) |
| forget | don't recall past (forget doing) | didn't do (forget to do) |
| try | experiment (try doing) | make effort (try to do) |
| go on | continue same (go on doing) | next stage (go on to do) |
| regret | sorry about past (regret doing) | formal announcement (regret to inform) |
After Prepositions → Always Gerund
- interested in doing
- good at doing
- tired of doing
- think about doing
- instead of doing
- without doing
- before/after doing
- by doing
Purpose → Always Infinitive
- I went to the store to buy milk.
- She's studying to pass the exam.
After Adjectives → Infinitive
- happy to help
- difficult to understand
- ready to leave
Part of the LearnFast.life Grammar Series