Phrasal Verb Word Order: Separable vs. Inseparable | 英文片語動詞語序規則：可分離與不可分離完整指南

本文重點: 本文深入解析英文片語動詞（phrasal verbs）的可分離（separable）與不可分離（inseparable）語序規則，幫助台灣上班族和英文學習者掌握最常見的50個片語動詞正確語序，避免代詞位置錯誤，全面提升多益（TOEIC）和商業英文寫作能力。

You already know what a phrasal verb is. You have seen them in textbooks, heard them in movies, and used them in emails and presentations — sometimes correctly, sometimes with that nagging sense that something sounds off. There is a specific grammar rule embedded in the most common phrasal verbs in English that most learners never fully internalize: word order. Specifically, whether you can split a phrasal verb apart by placing the object in the middle, or whether the object must always follow the complete verb-particle combination at the end.

Getting this wrong will not make you incomprehensible — native speakers will understand you either way. But getting it right is what separates English that sounds textbook-learned from English that sounds genuinely fluent. It is one of the most reliable markers of advanced proficiency, and once you understand the underlying logic, the patterns become surprisingly predictable.

What Makes a Phrasal Verb Separable or Inseparable | 可分離與不可分離片語動詞的核心差異

A phrasal verb combines a base verb with one or more particles — prepositions or adverbs such as up, off, out, の上, over, 、 そして after. The combined meaning often shifts significantly from the base verb alone. What is not always obvious to learners is that phrasal verbs divide into two distinct grammatical categories based on a single structural question: can the object interrupt the verb and its particle?

Separable phrasal verbs allow — and sometimes require — you to place the object between the verb and the particle. Inseparable phrasal verbs require the object to follow the entire verb-particle combination; the particle stays attached to the verb no matter what comes after it. Understanding this distinction is one of the fastest ways to close the gap between textbook English and natural spoken or written English (日常英文口語表達). It also directly affects your score on the TOEIC writing section (多益寫作), where word order errors in phrasal verb sentences are one of the most commonly penalized mistakes among Taiwanese test-takers (台灣考生).

Separable Phrasal Verbs and How to Use Them Correctly | 可分離片語動詞：正確用法完整說明

With separable phrasal verbs, you have flexibility in how you position the object. Consider turn off — one of the most common phrasal verbs in everyday English. You can correctly say either Turn off the lights または Turn the lights off. When the object is a noun or noun phrase, both positions are grammatically acceptable. The meaning is identical; the choice often comes down to sentence rhythm or natural emphasis.

The Pronoun Rule — The Most Critical Pattern | 代詞規則：最關鍵的語法規律

Here is where it becomes critical — and where most learners make consistent, repeatable errors. When the object is a pronoun (it, them, him, her, me, us, you), it must go in the middle of a separable phrasal verb. You cannot place a pronoun after the particle. This is a hard grammatical rule, with no exceptions, for all separable phrasal verbs.

• ✓ Turn it off.    ✗ Turn off it.
• ✓ Call them back.    ✗ Call back them.
• ✓ Give it up.    ✗ Give up it.
• ✓ Pick her up at seven.    ✗ Pick up her at seven.
• ✓ Write it down before you forget.    ✗ Write down it.

This rule trips up even intermediate learners. In Mandarin, the object position is more flexible in certain constructions (台灣學習者最常見的語序錯誤之一), which is one reason Taiwanese English learners frequently place pronouns in the wrong position with phrasal verbs. The fix is straightforward once internalized: if the object is a pronoun, it goes in the middle of any separable phrasal verb, without exception.

A practical diagnostic: try replacing the object with it または them. If the sentence requires that pronoun in the middle position to sound correct, you are dealing with a separable phrasal verb. This test works reliably across the most common phrasal verbs in English and is the fastest way to self-check your word order in real time.

Common Separable Phrasal Verbs in Context | 常見可分離片語動詞實際例句

The following separable phrasal verbs appear regularly in both conversational English and business English (商業英文). Each entry shows the full noun-object flexibility and the required pronoun-in-the-middle pattern.

Put off (to delay or postpone): Can we put off the meeting? または Can we put the meeting off? With a pronoun: We had to put it off until Thursday. This verb appears constantly in professional emails when schedules change.

Bring up (to mention a topic in conversation): She brought up an interesting point. または She brought an interesting point up. With a pronoun: Why did you bring it up now? You will encounter this regularly in meetings and discussions.

Leave out (to omit or exclude): Do not leave out any important details. または Do not leave any important details out. With a pronoun: Do not leave it out — the examiner will notice.

Write down (to record in writing): Write down the new vocabulary. または Write the new vocabulary down. With a pronoun: Write it down immediately — new vocabulary is far easier to retain with quick notation.

Look up (to search for information in a reference source): Look up the word in a dictionary. または Look the word up. With a pronoun: I will look it up on my phone.

Hand in (to submit work, documents, or an assignment): Hand in your report by Friday. または Hand your report in by Friday. With a pronoun: Make sure you hand it in before the deadline. This is common in both academic English (英文學習) and workplace contexts.

Notice that in every case, the pronoun version places the pronoun squarely in the middle — never at the end. That pattern is fixed and applies to all separable phrasal verbs, regardless of the specific verb or particle involved.

Inseparable Phrasal Verbs — When the Object Stays at the End | 不可分離片語動詞：受詞永遠放最後

With inseparable phrasal verbs, the object must always follow the complete verb-particle combination. Whether the object is a noun or a pronoun, you cannot insert it between the verb and the particle. The structure is fixed.

• ✓ I ran into my old professor.    ✗ I ran my old professor into.
• ✓ She is looking after the children.    ✗ She is looking the children after.
• ✓ We are counting on you.    ✗ We are counting you on.
• ✓ He went through a difficult period.    ✗ He went a difficult period through.

With inseparable verbs, the pronoun also stays at the end: I ran into him (not I ran him into), We are counting on her (not We are counting her on). This is precisely the opposite behavior from separable phrasal verbs with pronouns, which makes the pronoun test such a reliable diagnostic tool.

The Most Common Inseparable Phrasal Verbs | 最常見的不可分離片語動詞用法

Run into (to meet someone unexpectedly): I ran into my old colleague at Taipei Main Station. With a pronoun: I ran into him — note the pronoun stays at the end, not in the middle.

Get over (to recover from an illness, disappointment, or difficult experience): It took her months to get over the project failure. Also common in conversational reassurance: You will get over it.

Look after (to take care of someone or something): Who is looking after your dog while you travel? In a workplace context: Can you look after the project while I am on leave?

Keep up with (to maintain the same speed, level, or pace as someone or something): It is difficult to keep up with native speakers in a fast business meeting (商業英文 會議). Also: I try to keep up with current events in English every morning.

Deal with (to handle a problem, situation, or person): How do you deal with stress at work? This appears constantly in professional English writing and speaking tasks on TOEIC (多益考試) — a high-frequency verb for Taiwanese learners to master.

Count on / Rely on (to depend on someone or something): You can count on me to finish the report on time. / The whole team relies on clear communication. Both are inseparable — the person or thing being depended on always follows the particle.

Go through (to experience a difficult period; also, to review something carefully): He went through a challenging transition after changing careers. Also in professional contexts: Let us go through the presentation once more before the client arrives.

In every example above, moving the object between the verb and particle produces a grammatically incorrect sentence. The object is locked at the end, whether it is a full noun phrase or a single pronoun.

Three-Word Phrasal Verbs — Always Inseparable | 三部分片語動詞：永遠不可分離

English also contains phrasal verbs built from three parts — a base verb plus two particles. These are always inseparable, and the object must follow all three parts without exception. They are especially dense in professional emails and presentations, and mastering them immediately elevates the naturalness of your written English.

Put up with (to tolerate something unpleasant): I cannot put up with the constant interruptions in that open office. / How do you put up with such a long daily commute?

Look forward to (to anticipate something with excitement or positive expectation): I am looking forward to the presentation. A critical grammar note that many Taiwanese learners (台灣英文學習者) miss: look forward to is always followed by a noun or gerund — the -ing form — never a bare infinitive. Correct: I look forward to meeting you. Incorrect: I look forward to meet you. This error appears repeatedly in business emails (英文電子郵件) written by Taiwanese professionals (台灣上班族).

Come up with (to produce an idea, plan, or solution): The team came up with an innovative approach under pressure. / Can you come up with a better way to phrase this email?

Run out of (to exhaust a supply of something): I have run out of ideas for how to start this paragraph. / We are running out of time before the submission deadline.

Catch up with (to reach the same level as someone, or to reconnect with someone after time apart): Let us catch up with each other after the TOEIC exam (多益考試). / She worked extra hours to catch up with the rest of the team after her absence.

Three-word phrasal verbs like look forward to, come up with, 、 そして put up with appear in virtually every professional email thread. Getting their structure right — with the object anchored firmly at the end — gives your business writing an immediate and measurable boost in fluency.

How to Know Which Type You Are Dealing With | 如何判斷片語動詞的可分離性

There is no single rule that correctly categorizes every phrasal verb, but several strategies work reliably across the most common ones. Used together, they give you a practical working framework that applies in real time.

その pronoun test is the most powerful tool available to you. Substitute the object with it または them and pay attention to where it naturally belongs. If the pronoun sounds correct and natural in the middle position (Turn it off, Write it down, Look it up), the phrasal verb is separable. If the pronoun only sounds correct at the end (Run into him, Deal with it, Put up with them), it is inseparable. This test resolves ambiguity in the vast majority of cases and requires no memorization of lists.

A secondary signal: consider whether the particle functions more like an adverb or more like a preposition. When the particle is functioning as an adverb — modifying the action of the verb rather than describing a directional or relational link — the phrasal verb tends to be separable (write down, turn off, bring up). When the particle functions more like a preposition — connecting the verb to a specific person or thing — the phrasal verb tends to be inseparable (run into, look after, get over). This distinction is not perfectly clean at the edges, but it gives your intuition an accurate anchor for new phrasal verbs you encounter.

The most reliable long-term habit: check a learner’s dictionary whenever you encounter a new phrasal verb. Both the ケンブリッジ辞書 and the Oxford Learner’s Dictionary clearly mark phrasal verbs as separable or inseparable in their entries. Cambridge uses the notation sth ↔ verb to signal separability; Oxford uses [M] for movable (separable) entries. Building the habit of checking when you encounter an unfamiliar phrasal verb — rather than guessing — compounds over weeks and months into reliable instinct.

Finally, exposure and production reinforce what rules alone cannot fully deliver. Reading authentic business English, listening to podcasts, and writing your own example sentences using each new phrasal verb builds the pattern recognition that grammar rules can only point toward. The framework in this guide gives you a structure; repeated, intentional practice gives you the instinct to use the most common phrasal verbs in English naturally and correctly, without pausing to think.

Sources | 參考來源

Cambridge Dictionary — Phrasal Verbs Reference

Oxford Learner’s Dictionary — Grammar and Phrasal Verbs

British Council — Grammar Resources for English Learners