Grammar Rule in 30 Seconds
Use 'by' + gerund to explain the method or instrument used to achieve a specific result.
- Use it to describe the means: 'He learned English by watching movies.'
- It answers the 'how' question: 'I fixed the leak by tightening the valve.'
- Never use a base verb: 'By study' is wrong; 'By studying' is correct.
Overview
- She lost 10 kilograms by changing her diet.
- He became fluent by immersing himself in the language daily.
- The company cut its carbon footprint by switching to renewable energy.
- They reduced costs by automating the production line.
- By automating the production line, they reduced costs significantly.
- He left without saying goodbye.
- The project was approved without being reviewed thoroughly.
- Researchers advanced the field by developing a new methodology.
- Leaders can inspire change by modelling the behaviour they expect.
- Efficiency is achieved by eliminating unnecessary steps in the process.
2. Negative Construction
| Structure | Example |
|---|---|
|
By + not + -ing
|
By not waiting, we arrived early.
|
Formation Table
| Subject | Verb | Preposition | Gerund | Object |
|---|---|---|---|---|
|
I
|
passed
|
by
|
studying
|
hard
|
|
She
|
won
|
by
|
practicing
|
daily
|
|
They
|
failed
|
by
|
not
|
trying
|
|
We
|
arrived
|
by
|
taking
|
the bus
|
|
He
|
paid
|
by
|
using
|
a card
|
|
You
|
learned
|
by
|
watching
|
videos
|
Meanings
This structure functions as an adverbial phrase of manner, indicating the method or means by which an action is performed.
Method/Means
The primary way an action is accomplished.
“He gained weight by eating late at night.”
“We saved money by cooking at home.”
Instrumental
Using a specific tool or action to achieve a goal.
“I opened the door by using a paperclip.”
“She signaled her arrival by honking the horn.”
Consequence/Result
Describing an outcome as a direct result of an action.
“By ignoring the warnings, he caused a disaster.”
“By arriving early, we secured the best seats.”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
By + V-ing
|
I learned by reading.
|
|
Negative
|
By + not + V-ing
|
I saved by not buying it.
|
|
Question
|
How + Aux + S + V + by + V-ing?
|
How did you win by playing?
|
|
Passive
|
By + being + V-ed
|
He was saved by being warned.
|
|
Perfect
|
By + having + V-ed
|
He won by having trained hard.
|
|
Short Answer
|
By + V-ing
|
How? By practicing.
|
격식 수준 스펙트럼
One may achieve success by diligently applying oneself. (Professional advice)
You can succeed by working hard. (Professional advice)
You'll win by grinding. (Professional advice)
Just hustle. (Professional advice)
The 'By + Gerund' Map
Function
- Method How
- Instrument Tool
Examples
- By studying Method
- By using Tool
By + Gerund vs By + Noun
How to choose
Is it an action?
Common Gerunds
Action Verbs
- • Studying
- • Practicing
- • Running
- • Working
수준별 예문
I learn by listening.
...
He wins by running fast.
...
We eat by using forks.
...
She reads by looking at books.
...
I fixed the bike by cleaning it.
...
They saved money by walking.
...
He passed by studying hard.
...
She called by using her phone.
...
You can improve by practicing daily.
...
We solved it by working together.
...
He lost weight by eating less.
...
They won by playing better.
...
The company grew by acquiring rivals.
...
She succeeded by remaining calm.
...
He avoided errors by checking twice.
...
We reached the goal by planning ahead.
...
By implementing these changes, we optimized output.
...
He mitigated risk by diversifying assets.
...
She clarified her point by providing examples.
...
They achieved consensus by negotiating terms.
...
By meticulously analyzing the data, the researchers uncovered a trend.
...
He articulated his vision by weaving complex metaphors.
...
By eschewing traditional methods, they revolutionized the industry.
...
She demonstrated her prowess by effortlessly handling the crisis.
...
혼동하기 쉬운
Learners mix up the purpose (for) and the method (by).
Learners think 'with' works for methods.
Both indicate a process.
자주 하는 실수
By study
By studying
By to study
By studying
By studyed
By studying
By studies
By studying
By not study
By not studying
By studying not
By not studying
By the studying
By studying
By having study
By having studied
By be studying
By being studied
By study hard
By studying hard
By the fact of studying
By studying
Through to study
By studying
By having been study
By having been studying
By the means of study
By studying
문장 패턴
I achieved ___ by ___.
By ___, I was able to ___.
He improved his ___ by ___.
By not ___, she avoided ___.
Real World Usage
I increased revenue by optimizing our sales funnel.
Got there by taking the train.
I reached my goal by waking up early!
I booked the flight by using the app.
I paid by using my digital wallet.
The data was analyzed by applying statistical models.
Check the -ing
Don't use base verbs
Use for variety
Professionalism
Smart Tips
Use 'by + gerund' to explain methodology clearly.
Focus on the action, not the result.
Replace 'by means of' with 'by'.
Always put 'not' before the gerund.
발음
Gerund -ing
The 'ng' sound is velar nasal.
Rising-Falling
By STUDYing, / you WIN.
Emphasis on the method.
암기하기
기억법
By the Gerund, the method is known; by the -ing, the action is shown.
시각적 연상
Imagine a person holding a giant 'BY' sign while running (the -ing). Every time they run, they achieve a goal.
Rhyme
To show the way you do a thing, use 'by' followed by the -ing.
Story
Sarah wanted to win the race. She didn't just wish for it. She won by training every day. She won by eating healthy. She won by sleeping well.
Word Web
챌린지
Write 5 sentences about how you learned your favorite skill using 'by + gerund'.
문화 노트
Very common in business settings to emphasize efficiency.
Used frequently in academic writing.
Often used in casual conversation.
The construction stems from the Old English preposition 'bi' combined with the gerundial '-ing' suffix.
대화 시작하기
How did you learn English?
How do you stay healthy?
How did you solve that problem?
How do you manage your time effectively?
일기 주제
자주 하는 실수
Test Yourself
I learned by ___ (read) books.
Which is correct?
Find and fix the mistake:
He won by play well.
I used the app to pay. (Rewrite with 'by')
by / studying / passed / I / the / exam
Match each item on the left with its pair on the right:
How did you avoid the fine?
She succeeded by ___ (remain) calm.
Score: /8
연습 문제
8 exercisesI learned by ___ (read) books.
Which is correct?
Find and fix the mistake:
He won by play well.
I used the app to pay. (Rewrite with 'by')
by / studying / passed / I / the / exam
How to lose weight?
How did you avoid the fine?
She succeeded by ___ (remain) calm.
Score: /8
자주 묻는 질문 (8)
Yes, but it means something different, like 'by bus' for transport.
It is used in all registers, but it is very common in formal writing.
Only the verb immediately following 'by' needs to be a gerund.
Yes, 'by being + past participle'.
It is more concise and focuses on the method.
Prepositions must be followed by nouns or gerunds, not base verbs.
Yes, it describes the method for any tense.
Most action verbs work well.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Al + infinitive / Mediante + sustantivo
Spanish uses infinitives where English uses gerunds.
En + participe présent
French uses the present participle, English uses the gerund.
Indem + clause
German uses a clause structure instead of a phrase.
〜することで (koto de)
Japanese uses a nominalizer particle.
通过 (tōngguò) + verb
Chinese does not conjugate the verb.
عن طريق (an tareeq) + masdar
Arabic uses a verbal noun.
Learning Path
Prerequisites
관련 동영상
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