English speakers use phrasal verbs all day long: turn off the light, put away your clothes, pick up the kids, throw out the trash. These are verbs with a small particle like off, on, up, away, or out, and together they make a new meaning. If you only know formal verbs like extinguish or collect, you will understand books but miss everyday talk.

Word order matters here. Please turn the light off it is a sentence no native speaker would say, and it can confuse your listener completely. Learning where the object goes, especially when it is a pronoun like it or them, makes your English sound natural and keeps your requests clear at home and at work.

A phrasal verb is a verb plus a particle: turn + off, put + away, pick + up. The particle changes the meaning of the verb. Turn means to rotate, but turn off means to stop a machine or light. Often you cannot guess the meaning from the parts, so learn each phrasal verb as one word with one meaning, like a new vocabulary item.

Many common phrasal verbs are separable. That means the object can sit after the particle or between the verb and the particle. Both of these are correct: Turn off the light and Turn the light off. Put away the dishes and Put the dishes away. With a full noun like the light, you can choose either order, and both sound fine.

The big rule comes with pronouns. When the object is a pronoun (it, them, him, her, me, us), it MUST go between the verb and the particle: Turn it off, Put them away, Pick her up, Wake me up. You cannot say Turn off it or Pick up her. And never repeat the object: Turn the light off it is wrong because the light and it are the same thing said twice. Choose one object and put it in the right place.

Some phrasal verbs are inseparable: the verb and particle always stay together, and the object follows them. Look after means to care for: I look after my little brother, or I look after him; never I look him after. Other inseparable examples: get on the bus, get off the train, run into an old friend, look for my keys. There is no rule on the verb itself that tells you which type it is, so when you learn a new phrasal verb, learn its type too: separable or inseparable.

A practical habit helps a lot: learn phrasal verbs in short model sentences with a pronoun. Say Turn it off, Put it away, Pick them up, Look after her ten times each. Then the correct order lives in your mouth, not just in a rule.

1. 1. Can you turn on the heater, please?

   Turn on starts a machine; the noun object follows the particle.

2. 2. The music is loud, so turn it down.

   The pronoun it must sit between the verb and down.

3. 3. Please pick up your toys before dinner.

   Pick up means to lift or collect; noun after the particle is fine.

4. 4. These shoes are dirty; take them off here.

   Take off with a pronoun: them goes in the middle.

5. 5. I will pick you up at the airport.

   With people, the pronoun you also goes between verb and particle.

6. 6. She put her phone away during the meeting.

   A noun object can also sit in the middle position.

7. 7. Do not throw out those old photos.

   A negative order; throw out means to put in the trash.

8. 8. He looks after his grandmother every weekend.

   Look after is inseparable; the object always follows after.

9. 9. We got on the bus outside the bank.

   Get on is inseparable; never split it from the bus.

10. 10. I am looking for my glasses; have you seen them?

    Look for is inseparable; say look for them, not look them for.

11. 11. Could you fill in this form at reception?

    Fill in a form; you could also say fill this form in.

12. 12. Write down the address before you forget it.

    Write down means to note; write it down when using a pronoun.

13. 13. My alarm wakes me up at six every day.

    Wake up is separable; the pronoun me sits in the middle.

14. 14. The meeting was put off until next Thursday.

    Put off means to delay; here it appears in the passive.

15. 15. I ran into an old friend at the market.

    Run into means to meet by chance; it is inseparable.

16. 16. Try the jacket on before you buy it.

    Try on is separable; the noun can go in the middle too.

The first mistake is repeating the object, as in Please turn the light off it. The light and it point to the same thing, so the sentence has two objects and breaks. Say Please turn the light off, or Please turn it off. One object, one position.

The second mistake is putting a pronoun after the particle: Turn off it, Pick up them, Put away it. English never allows this with separable phrasal verbs. The pronoun must move to the middle: Turn it off, Pick them up, Put it away. If your object is it, them, him, her, me, or us, the middle position is the only correct choice.

The third mistake is splitting inseparable phrasal verbs. Learners say I will look my nephew after or She got the bus on. Verbs like look after, look for, get on, get off, and run into never separate: I will look after my nephew, She got on the bus. When you meet a new phrasal verb, check in your dictionary whether it separates, and learn one example sentence with it.

• Learn each phrasal verb as one new word with one meaning.
• Nouns can go before or after a separable particle: turn the light off or turn off the light.
• Pronouns must go in the middle: turn it off, never turn off it.
• Never say the object twice: turn the light off it is always wrong.
• Inseparable verbs never split: look after him, get on the bus.
• Practice out loud with pronouns: turn it off, put it away, pick them up.