B1 phrase #1,000 پرکاربردترین 3 دقیقه مطالعه

~에 의해서

توضیح ~에 의해서 در سطح شما:

You use this to say who did something. If a cat eats a fish, you say 'The fish was eaten by the cat.' It is just a simple way to show who is the boss of the action!

At this level, you start using passive voice. You might say, 'The house was built by my father.' It helps you talk about things that happened to objects, rather than just what people did.

Now you can use it for causes. 'The fire was caused by a lightning strike.' It connects an event to its reason, which is very useful for telling stories or explaining news.

You will notice that ~에 의해서 is more formal. In professional emails, you might say, 'The project was delayed by unforeseen circumstances.' It sounds more serious and objective than 'the rain stopped us.'

At the advanced level, you use it to describe complex systems. 'The policy is governed by strict regulations.' You are now using it to link abstract concepts like laws, morals, or scientific principles to their outcomes.

Mastery means knowing when not to use it. Sometimes, using 'by' makes a sentence too heavy. You will learn to choose between 'by' and other prepositions like 'through' or 'via' to create the perfect tone for your academic or literary writing.

~에 의해서 در ۳۰ ثانیه

  • Used for agents
  • Used for causes
  • Common in passive voice
  • Formal and precise

When we use the phrase ~에 의해서, we are essentially pointing a finger at the cause or the person responsible for an outcome. Think of it as the bridge between an action and its source. It is the go-to way to express agency or causality in a sentence.

You will see this most often when someone wants to be very clear about who did the work or what force created a change. It feels a bit more formal than just saying 'by,' which makes it perfect for reports, news, or serious explanations. It helps the listener understand exactly where the influence is coming from.

The English equivalent 'by' has deep roots in Old English, coming from the word . Over centuries, it evolved from meaning 'near' to indicating the instrument or agent of an action. The Korean structure ~에 의해서 is a modern functional equivalent constructed using the noun 의해 (meaning 'basis' or 'dependence') combined with the particle -서.

Historically, languages needed a way to shift focus from the subject to the object, leading to the development of passive markers. While 'by' is a simple preposition, ~에 의해서 carries a slightly more analytical weight, reflecting the Korean language's tendency to use specific noun-based markers to define relationships between events clearly.

Using ~에 의해서 is common in formal writing, such as academic papers or legal documents. You would use it when you want to emphasize the mechanism behind a result. For example, 'The decision was made by the committee' sounds neutral, but 'The decision was made on the basis of (a variation of ~에 의해서) the evidence' adds a layer of formal authority.

It pairs well with passive verbs like 'caused,' 'influenced,' 'determined,' or 'governed.' Avoid using it in casual conversation with friends, as it can sound a bit stiff or overly robotic. Stick to 'by' for your daily chats and save this phrase for when you need to sound professional and precise.

While the phrase itself is a functional tool, it appears in many common expressions. 1. By and large: Meaning 'on the whole.' 2. By the book: Meaning 'according to the rules.' 3. By all means: Meaning 'certainly.' 4. By no means: Meaning 'not at all.' 5. By the way: A common transition phrase.

Each of these uses the core concept of 'by' (as in 'by means of') to create a new, fixed meaning. Learning these will help you sound much more natural when speaking English, as they are used constantly in both professional and social settings.

In English, 'by' is a preposition and does not change form; it has no plural or tense. It is pronounced /baɪ/ in both British and American English, rhyming with 'sky,' 'fly,' and 'try.' The stress is always on the single syllable.

When using ~에 의해서 in translation, remember that the English 'by' is much more versatile. While 'by' can indicate location ('by the door') or time ('by 5 PM'), ~에 의해서 is strictly reserved for agency and causation. Always check if you are describing a location or an agent before choosing your translation!

نکته جالب

It evolved from a spatial marker to an agent marker.

راهنمای تلفظ

بریتانیایی /baɪ/

Short, sharp sound.

آمریکایی /baɪ/

Longer vowel sound.

خطاهای رایج

  • pronouncing it like 'bee'
  • adding extra syllables
  • stressing the wrong part

هم‌قافیه با

sky fly try my sigh

سطح دشواری

خواندن 1/5

easy

نوشتن 2/5

moderate

صحبت کردن 2/5

moderate

گوش دادن 1/5

easy

بعداً چه یاد بگیریم؟

پیش‌نیازها

is was the

بعداً یاد بگیرید

passive voice prepositions

پیشرفته

causality agency

گرامر لازم

Passive Voice

The ball was hit by him.

Prepositions

By, with, at.

Causality

Caused by.

مثال‌ها بر اساس سطح

1

The book was written by him.

book / written / by / him

Passive voice

2

The song was sung by her.

song / sung / by / her

Passive voice

3

The ball was kicked by the boy.

ball / kicked / by / boy

Passive voice

4

The door was opened by Sam.

door / opened / by / Sam

Passive voice

5

The cake was made by Mom.

cake / made / by / Mom

Passive voice

6

The letter was sent by mail.

letter / sent / by / mail

Passive voice

7

The art was painted by an artist.

art / painted / by / artist

Passive voice

8

The car was driven by Dad.

car / driven / by / Dad

Passive voice

1

The report was finished by the team.

2

The game was won by our school.

3

The movie was directed by a famous person.

4

The tree was planted by my grandfather.

5

The window was broken by a rock.

6

The email was received by the manager.

7

The room was cleaned by the staff.

8

The test was taken by all students.

1

The accident was caused by icy roads.

2

The decision was influenced by the survey results.

3

The law was passed by the parliament.

4

The discovery was made by a team of scientists.

5

The invention was patented by the company.

6

The policy was changed by the board.

7

The meeting was scheduled by the secretary.

8

The plan was approved by the director.

1

The outcome was determined by several factors.

2

The study was conducted by an independent agency.

3

The crisis was exacerbated by poor communication.

4

The trend was driven by consumer behavior.

5

The structure is supported by steel beams.

6

The performance was praised by the critics.

7

The system is controlled by a central computer.

8

The result was achieved by hard work.

1

The phenomenon is explained by quantum mechanics.

2

The legislation is dictated by international standards.

3

The narrative is shaped by the author's bias.

4

The economy is affected by global trade policies.

5

The evolution is driven by natural selection.

6

The architecture is inspired by ancient designs.

7

The reaction is catalyzed by an enzyme.

8

The movement is fueled by social media.

1

The interpretation is constrained by historical context.

2

The logic is underpinned by rigorous analysis.

3

The debate is framed by conflicting ideologies.

4

The outcome is necessitated by the circumstances.

5

The policy is mandated by legislative decree.

6

The theory is substantiated by empirical evidence.

7

The change is precipitated by market shifts.

8

The art is defined by its cultural heritage.

ترکیب‌های رایج

caused by
influenced by
determined by
driven by
supported by
governed by
inspired by
defined by
surrounded by
followed by

اصطلاحات و عبارات

"by and large"

on the whole

By and large, the event was a success.

neutral

"by the book"

following rules

We must do this by the book.

neutral

"by all means"

certainly

By all means, come visit us!

casual

"by no means"

not at all

It is by no means an easy task.

formal

"by the way"

incidentally

By the way, did you see the news?

casual

"by heart"

from memory

I learned the poem by heart.

neutral

به‌راحتی اشتباه گرفته می‌شود

~에 의해서 در مقابل with

both connect actions

by = agent, with = tool

Killed by a man with a knife.

~에 의해서 در مقابل near

both relate to space

by = proximity/agent, near = location

Sitting by the door vs near the door.

~에 의해서 در مقابل through

both show cause

by = direct agent, through = process

By the government through a law.

~에 의해서 در مقابل at

both can relate to time

by = deadline, at = specific point

By 5 PM vs at 5 PM.

الگوهای جمله‌سازی

A1

Subject + was/were + V3 + by + Agent

The cake was made by me.

A2

It is caused by + Noun

It is caused by the rain.

B1

Influenced by + Noun

He was influenced by art.

B2

Determined by + Noun

Prices are determined by supply.

C1

Governed by + Noun

The country is governed by law.

خانواده کلمه

اسم‌ها

bystander someone present but not involved

مرتبط

by base preposition

نحوه استفاده

frequency

10

مقیاس رسمیت

Academic/Legal Professional Neutral Casual

نکات

💡

Memory Palace Trick

Imagine a 'B' shaped agent doing the work.
💡

When Native Speakers Use It

In reports and news broadcasts.
🌍

Cultural Insight

It emphasizes accountability.
💡

Grammar Shortcut

Always check for 'was/were' before 'by'.
💡

Say It Right

Keep it short and punchy.
💡

Don't Make This Mistake

Don't use it for locations.
💡

Did You Know?

It is one of the most common words.
💡

Study Smart

Write passive sentences about your day.
💡

Passive Rule

Subject + be + V3 + by + agent.
💡

Professionalism

Use it to sound objective.

حفظ کنید

روش یادسپاری

By = Boss (The boss is the agent).

تداعی تصویری

A signature at the bottom of a document.

شبکه واژگان

agent cause passive source

چالش

Write 3 passive sentences today.

ریشه کلمه

Old English

معنای اصلی: near

بافت فرهنگی

None

Used heavily in legal and academic contexts.

'By the People' (political slogan)

تمرین در زندگی واقعی

موقعیت‌های واقعی

at work

  • Approved by the manager
  • Written by the team
  • Signed by the CEO

school

  • Written by a student
  • Read by the teacher
  • Solved by the class

news

  • Caused by the storm
  • Reported by the media
  • Investigated by police

daily life

  • Made by hand
  • Sent by post
  • Driven by passion

شروع‌کننده‌های مکالمه

"Who was this book written by?"

"What was the fire caused by?"

"Is your decision influenced by others?"

"How is the city governed?"

"What are you driven by?"

موضوعات نگارش

Write about a project finished by you.

Describe a change caused by a person.

What is a rule governed by your school?

Who is a person you are inspired by?

سوالات متداول

8 سوال
No, it can be used for forces like 'by the wind'.
Yes, 'by 5 PM' means before or at that time.
It is neutral, but the passive structure is formal.
'By' is for the person, 'with' is for the tool.
It is rare but possible in some contexts.
No, it is a preposition.
No, it is an invariable preposition.
Yes, it is very common in literature.

خودت رو بسنج

fill blank A1

The apple was eaten ___ the boy.

درسته! نه دقیقاً. پاسخ صحیح: by

By indicates the agent.

multiple choice A2

Which sentence is correct?

درسته! نه دقیقاً. پاسخ صحیح: The tree was planted by him.

Passive voice requires 'was' + past participle + 'by'.

true false B1

'By' can be used to indicate a tool used for an action.

درسته! نه دقیقاً. پاسخ صحیح: نادرست

We use 'with' for tools.

match pairs B1

Word

معنی

همه جفت شدند!

Match the phrase to its meaning.

sentence order B2

کلمات زیر رو بزن تا جمله رو بسازی
درسته! نه دقیقاً. پاسخ صحیح:

The report was written by me.

امتیاز: /5

مفید بود؟
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