Grammar Rule in 30 Seconds
Use 'on' after 'depend' and 'rely' to show that one thing is decided by or needs another.
- Always use 'on' after depend, never 'of' or 'from'. Example: 'It depends on the weather.'
- Use 'rely on' when you trust someone or need them for help. Example: 'I rely on my alarm.'
- When followed by a verb, use the -ing form. Example: 'Success depends on working hard.'
Overview
depend on 和 rely on。on 的存在，或者混淆这两者的细微差别。掌握了它们，你不仅能更准确地描述职场中的协作关系（比如“项目进度取决于客户的反馈”），还能在日常生活中表达更深层的情感信任（比如“我一直很信赖我的好朋友”）。depend on 和 rely on 的语法逻辑，我们首先要理解英语中的及物性 (Transitivity)。在中文里，我们可以直接说“我依赖他”，动词“依赖”后面直接跟人。但在英语中，depend 和 rely 本身是不及物动词，它们必须借助介词 on 才能连接后面的对象（宾语）。on 想象成一个“支撑点”或“连接器”。在英语的底层逻辑中，on 带有“在……之上”的含义。当你“依赖”某人或某事时，你的重心是“压”在对方身上的。因此，depend on 和 rely on 的字面逻辑其实是“基于……而存在”或“立足于……之上”。- 中文： 主语 + 动词 + 宾语（例如：“这 取决于 天气。”）
- 英语： 主语 + 动词 + 介词 (on) + 宾语（例如：
It depends on the weather.）
on，这个句子在语法上就像断了线的风筝，无法成立。depend on / rely on | depended on / relied on |depends on / relies on | depended on / relied on |It（比如 It depends on...）时，千万别忘了动词后面的 -s。on 后面可以接多种形式的内容：- 名词：
The price depends on the quality.(价格取决于质量。) - 代词：
You can always rely on me.(你永远可以信任我。) - 动名词 (V-ing)：
Success depends on working hard.(成功取决于努力工作。) - 疑问词引导的从句：
It depends on how much time we have.(这取决于我们有多少时间。)
- 否定：
It doesn't depend on luck.(这不取决于运气。) - 疑问：
Does it depend on the weather?(这取决于天气吗？)
depend on 和 rely on 在很多情况下可以互换，但在追求“地道感”的 B1 级别，我们需要区分它们的侧重点。depend on 的场景：侧重“条件”与“因果”depend on。这在中文里通常翻译为“取决于”。- 描述不确定性：
Whether we go for a picnic depends on the weather.(我们是否去野餐取决于天气。)- 在微信聊天中，如果有人问你周末有没有空，你可以简短地回答：
It depends.(视情况而定。) - 描述生存或运作的必要条件：
The company depends on international trade.(这家公司依赖国际贸易生存。)Children depend on their parents for food and clothing.(孩子依靠父母提供衣食。)
rely on 的场景：侧重“信任”与“可靠”rely on 更为合适。这在中文里对应的是“信赖”、“依靠”。- 描述人际间的信任：
I can always rely on my best friend when I'm in trouble.(当我遇到麻烦时，我总能信赖我的好朋友。)- 在职场中：
The manager relies on his assistant to handle the schedule.(经理依赖他的助理来处理日程。) - 描述对技术或习惯的依赖：
Nowadays, many people rely on GPS to find their way.(如今，很多人依赖 GPS 找路。)I rely on coffee to stay awake in the morning.(我早上靠咖啡来提神。)
- 如果你想说“看情况”，用
depend on。 - 如果你想说“我相信他/它”，用
rely on。
on (L1 负迁移)- 错误：
It depends the price. - 正确：
It depends on the price. - 老师点评： 记住，在英语逻辑里，
depend后面必须有一个“支撑物”，这个支撑物就是on。没有on，句子结构是不完整的。
depend on 和 It depends 的用法It's depend on...。- 错误：
It's depend on the situation. - 正确：
It depends on the situation. - 老师点评： 这是一个极其普遍的错误。
depend本身就是动词，不需要在前面加is。这就像你不会在中文里说“它是取决于”一样。
of 或 with)because of 或 agree with 的干扰。- 错误：
I rely with my parents./It depends of the weather. - 正确：
I rely on my parents./It depends on the weather. - 老师点评： 英语中的短语搭配是固定的“全家桶”。
depend和rely的唯一合法伴侣就是on。记住一个口诀：“依赖”就像坐在椅子上，一定要有on。
depend on、rely on 与其他相似表达的区别：depend on | 取决于、由……决定 | 强调逻辑上的条件关系 | Success depends on effort. |rely on | 信赖、依靠 | 强调情感上的信任或功能上的依赖 | I rely on my alarm clock. |count on | 指望、期待 | 语气比 rely on 更口语化，常用于朋友间 | You can count on me! |trust (动词) | 信任 | 纯粹指相信某人的品德，不一定有“依赖”的行为 | I trust his word. |be responsible for | 对……负责 | 强调职责所在，而非依赖关系 | He is responsible for the project. |It depends. 后面什么都不加是可以的吗？It depends.。这相当于中文的“看情况吧”。rely in 或者 depend with 吗？on。虽然在极少数极其正式的法律文献中可能会看到 depend upon，但在 B1 级别和日常交流中，请务必死守 on。rely on 和 trust 有什么区别？trust 是你内心觉得一个人是诚实的（心理活动）；而 rely on 是因为你觉得他可靠，所以把事情交给他做，或者需要他的支持（实际行为）。例如：我信任 (trust) 那个医生，所以我依赖 (rely on) 他的诊断。dependent 这个词？dependent 是形容词形式。用法是 be dependent on。例如：He is still dependent on his parents. 这比 He depends on his parents 语气更重，通常暗示一种“无法自立”的状态，比如经济尚未独立。Conjugating 'Depend On'
| Subject | Affirmative | Negative | Question |
|---|---|---|---|
|
I
|
depend on
|
don't depend on
|
Do I depend on...?
|
|
You
|
depend on
|
don't depend on
|
Do you depend on...?
|
|
He/She/It
|
depends on
|
doesn't depend on
|
Does it depend on...?
|
|
We
|
depend on
|
don't depend on
|
Do we depend on...?
|
|
They
|
depend on
|
don't depend on
|
Do they depend on...?
|
Common Conversational Shortcuts
| Full Phrase | Short Form | Context |
|---|---|---|
|
It depends on the situation.
|
It depends.
|
General response to a question.
|
|
That depends on what you want.
|
Depends.
|
Very informal/casual.
|
|
I am relying on you.
|
I'm relying on you.
|
Standard contraction.
|
Meanings
To be determined or conditioned by something else, or to trust/need someone or something for support.
Contingency
When one event is only possible if another event happens first.
“Our trip depends on whether I get my bonus.”
“The price depends on the size of the room.”
Trust/Reliability
To have confidence in someone or something to perform a task.
“You can always depend on Sarah to be on time.”
“I rely on my car to get to work every day.”
Financial/Physical Support
To need someone or something in order to survive or function.
“Many children depend on their parents until they are 20.”
“The local economy relies on tourism.”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
Subject + depend(s) on + Noun
|
It depends on the price.
|
|
Negative
|
Subject + doesn't depend on + Noun
|
Happiness doesn't depend on money.
|
|
Question
|
Does + Subject + depend on + Noun?
|
Does it depend on the weather?
|
|
With Gerund
|
Verb + on + Verb-ing
|
I rely on getting up early.
|
|
With 'Whether'
|
It depends on whether + Clause
|
It depends on whether she says yes.
|
|
With 'How/What'
|
It depends on + Question Word
|
It depends on how much it costs.
|
正式程度
The event's commencement is contingent upon favorable weather conditions. (Planning an outdoor activity)
The picnic depends on the weather. (Planning an outdoor activity)
It depends on the weather. (Planning an outdoor activity)
Depends on the rain, I guess. (Planning an outdoor activity)
The 'On' Connection
Verbs
- Depend To be decided by
- Rely To trust/need
- Count To expect help from
Depend vs. Rely
Choosing the Right Word
Is it about a condition?
Is it about trust/need?
Common Objects for 'On'
People
- • Parents
- • Friends
- • Experts
Things
- • Technology
- • Weather
- • Money
按水平分级的例句
It depends on the rain.
Depende de la lluvia.
I depend on my dad.
Dependo de mi papá.
Does it depend on the time?
¿Depende de la hora?
It doesn't depend on me.
No depende de mí.
We rely on our car every day.
Confiamos en nuestro coche todos los días.
The price depends on the color.
El precio depende del color.
I am relying on you to help me.
Estoy contando contigo para que me ayudes.
It depends on the day of the week.
Depende del día de la semana.
Our future depends on making the right choice now.
Nuestro futuro depende de tomar la decisión correcta ahora.
I rely on my phone for almost everything.
Dependo de mi teléfono para casi todo.
Whether we win depends on how hard we practice.
Si ganamos depende de cuánto practiquemos.
He relies on his sister for emotional support.
Él depende de su hermana para apoyo emocional.
The success of the project depends on everyone's cooperation.
El éxito del proyecto depende de la cooperación de todos.
You shouldn't rely on luck to pass the exam.
No deberías confiar en la suerte para aprobar el examen.
The company relies heavily on overseas sales.
La empresa depende en gran medida de las ventas en el extranjero.
It all depends on what the manager decides.
Todo depende de lo que decida el gerente.
The theory depends on several unproven assumptions.
La teoría depende de varias suposiciones no probadas.
The elderly often rely on the state for their pension.
Los ancianos a menudo dependen del estado para su pensión.
The outcome depends on the jury's interpretation of the law.
El resultado depende de la interpretación de la ley por parte del jurado.
She relies on her intuition when making difficult decisions.
Ella confía en su intuición al tomar decisiones difíciles.
The stability of the bridge depends on the integrity of its pillars.
La estabilidad del puente depende de la integridad de sus pilares.
The narrative relies on the reader's ability to infer meaning.
La narrativa depende de la capacidad del lector para inferir el significado.
Whether the treaty is signed depends on the resolution of the border dispute.
Que se firme el tratado depende de la resolución de la disputa fronteriza.
The ecosystem relies on a delicate balance between species.
El ecosistema depende de un delicado equilibrio entre las especies.
容易混淆
Learners see 'depend on' and assume 'independent' also takes 'on'.
Both can be used to show a relationship between two things.
Learners use 'trust on' because of 'rely on'.
常见错误
It depends of the weather.
It depends on the weather.
I depend from my parents.
I depend on my parents.
It depend on you.
It depends on you.
I rely of my car.
I rely on my car.
It depends on go now.
It depends on going now.
I am depend on you.
I depend on you.
It depends on how is the weather.
It depends on how the weather is.
I rely on he to help.
I rely on him to help.
It depends on if it rains.
It depends on whether it rains.
The movie depends of a good script.
The movie depends on a good script.
The results are dependent of the sample size.
The results are dependent on the sample size.
句型
It depends on ___.
I rely on ___ to ___.
Whether we ___ depends on ___.
Success depends on ___ing ___.
Real World Usage
Can't say yet, depends on when I finish.
I rely on my organizational skills to meet deadlines.
Our route depends on the road conditions.
Relying on coffee and kindness.
Don't rely on a single source of income.
The flood risk depends on tonight's rainfall.
The 'Whether' Trick
No 'Of' Allowed
Adverb Power
The Short Answer
Smart Tips
Stop and visualize a person sitting ON a chair. The person depends ON the chair.
Always add -ing. Prepositions are like glue that only sticks to -ing verbs.
Use 'rely on' instead of 'need' when talking about tools or people.
Start with 'That's a good question, it depends on...' to give yourself time to think.
发音
Linking 'Depend' and 'On'
In natural speech, the 'd' at the end of 'depend' often slides into the 'o' of 'on'.
Schwa in 'Depend'
The first 'e' in 'depend' is a weak sound, almost like 'dih-pend'.
Rising on 'Depends'
It de-PENDS? ↗
Shows uncertainty or that more information is needed.
记住它
记忆技巧
Think of the word 'ON' as a light switch. The light (the result) only turns 'ON' if you flip the switch (the condition).
视觉联想
Imagine a person leaning 'ON' a cane. The person is the subject, the cane is the object, and the act of leaning is 'depending'. Without the cane, the person falls.
Rhyme
Whether you're weak or whether you're strong, 'depend' and 'rely' always take 'ON'.
Story
A traveler is lost in the desert. He 'depends on' his map to find the way, and he 'relies on' his last bottle of water to survive. Both the map and the water are 'on' his mind.
Word Web
挑战
Write three sentences about your morning routine using 'rely on' (e.g., 'I rely on coffee to wake up'). Then, write three sentences about your weekend plans using 'it depends on'.
文化笔记
In US business culture, being 'reliable' (someone you can rely on) is one of the highest compliments. It implies consistency and punctuality.
British speakers often use 'It depends' as a polite way to say 'no' or to avoid a direct answer that might be awkward.
On platforms like Patreon or YouTube, creators often say they 'rely on' their community, emphasizing a partnership rather than just a transaction.
The word 'depend' comes from the Latin 'dependere', meaning 'to hang from'.
对话开场白
What does your happiness depend on?
Who do you rely on when you have a problem?
Does your job depend on using English?
What technology do you rely on the most?
日记主题
常见错误
Test Yourself
The success of the party depends ___ the music.
Which sentence is correct?
Find and fix the mistake:
It depends of how much time we have.
depends / it / on / weather / the
A: Are you coming to the gym? B: It depends ___ I finish my work.
Select the odd one out.
Match each item on the left with its pair on the right:
Passing the test depends on ___ every day.
Score: /8
练习题
8 exercisesThe success of the party depends ___ the music.
Which sentence is correct?
Find and fix the mistake:
It depends of how much time we have.
depends / it / on / weather / the
A: Are you coming to the gym? B: It depends ___ I finish my work.
Select the odd one out.
Match 'Depend on' and 'Rely on'.
Passing the test depends on ___ every day.
Score: /8
Practice Bank
13 exercisesMy happiness doesn't always depend ___ how much money I have.
You can always rely him to be honest.
Which sentence is correct?
Translate into English: 'Ella confía mucho en sus compañeros de equipo.'
Arrange these words into a sentence:
Match the sentence halves:
A healthy diet and regular exercise ___ your overall well-being.
My phone is old, so I don't really depend it anymore.
Which sentence is grammatically sound?
Translate into English: 'depender de la situación'
Arrange these words into a sentence:
Match the verb to its common preposition in this context:
Our company always ___ our employees' feedback for improvement.
Score: /13
常见问题 (8)
No. While some languages use 'from', English strictly uses `on`. Saying 'depends from' will sound incorrect to native speakers.
They are very similar! `Count on` is slightly more informal and usually refers to people. `Depend on` can be used for people, things, or logical conditions.
Yes, in conversation. If someone asks 'Are you going?', you can simply say `It depends.` It implies that there are conditions you haven't mentioned yet.
Both are used in speech, but `whether` is more formal and grammatically correct for writing. Example: `It depends on whether it rains.`
Absolutely. You can say `The plant depends on sunlight` or `The price depends on the market.`
Adding `heavily` means you need that thing very much. Example: `I rely heavily on my glasses` means you can't see at all without them.
Yes. The adjective form `dependent` also uses `on`. Example: `He is dependent on his inhaler.`
This is likely 'L1 interference.' If your native language (like Spanish or French) uses 'of', your brain tries to translate it directly. You must consciously practice the 'on' connection.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
depender de
Preposition choice: 'de' vs 'on'.
dépendre de
French uses 'of', English uses 'on'.
abhängen von
German uses 'from', English uses 'on'.
...ni yoru / ...shidai
Japanese uses post-positional particles or nouns.
ya'tamid 'ala
Very similar logic and preposition.
qu jue yu
Chinese uses a full verb phrase rather than a preposition.
Learning Path
Prerequisites
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