Turn It Off or Turn Off It? Phrasal Verb Word Order
Which phrasal verbs can be split, which can never be, and why a pronoun changes the rule — the mistake that survives longest.
Once you know a few dozen phrasal verbs, one question keeps coming back: where does the object go?
- Turn off the light.
- Turn the light off.
- Turn it off.
- ❌ Turn off it.
Three of those are fine and one is impossible, and nothing about the words themselves tells you why. This is the phrasal-verb error that outlives all the others — people who have used English for years still say "turn off it".
Three types, not one
Phrasal verbs behave differently depending on what they do with an object.
1. Separable — the object can go either side
Most common phrasal verbs with an object are these.
- She turned down the offer.
- She turned the offer down.
Both are correct. With a long object, keep the verb together — She turned down the offer they made last Tuesday — because splitting it strands the particle miles from its verb.
2. Inseparable — the object always follows the whole verb
- ✅ I ran into an old friend.
- ❌ I ran an old friend into.
Look after, get on with, run into, look for, deal with, care for — these never split, not even for a pronoun: I ran into him, never "I ran him into".
3. No object at all
- The car broke down. · She grew up in Rome. · Please sit down.
There is nothing to place, so the question does not arise. Break down and grow up simply cannot take an object.
The pronoun rule
Here is the part worth memorising, because it overrides everything above:
If the object is a pronoun — it, him, her, them, us — and the verb is separable, the pronoun goes in the middle. Always.
- ✅ Turn it off. ❌ Turn off it.
- ✅ Pick them up. ❌ Pick up them.
- ✅ Throw it away. ❌ Throw away it.
A pronoun carries no new information — you already know what it refers to — and English does not like putting old information at the end of a sentence, where the stress falls. So the pronoun moves out of the way and the particle takes the final position.
That also explains why full nouns are flexible: the light is new information, so it can sit at the end quite happily.
| Object | Split | Together |
|---|---|---|
| a noun (the light) | ✅ turn the light off | ✅ turn off the light |
| a pronoun (it) | ✅ turn it off | ❌ turn off it |
How to tell which type a verb is
There is no rule you can apply from the outside, but there are two reliable tests.
The pronoun test. Try the verb with it. If turn it off sounds right, the verb is separable. If only look after it works, it is inseparable.
The three-word test. Phrasal verbs with two particles — get on with, look forward to, run out of, put up with, catch up on — are always inseparable. The object goes after the whole thing, with no exceptions.
- I'm looking forward to it. · I can't put up with them.
That single observation settles a large group of verbs at once.
The ones people get wrong most
| Verb | Type | Correct with a pronoun |
|---|---|---|
| turn on / off | separable | turn it on |
| pick up | separable | pick it up |
| put off | separable | put it off |
| throw away | separable | throw it away |
| fill in | separable | fill it in |
| look after | inseparable | look after it |
| look for | inseparable | look for it |
| run into | inseparable | run into him |
| deal with | inseparable | deal with it |
| get on with | inseparable | get on with them |
In conversation
Sorting out the flat
A: What should I do with these old magazines?
B: Throw them away. Actually — hold on, I'll look through them first.
A: And the heater? It's still on.
B: Turn it off, yes. And if you find the forms on the table, could you fill them in?
Note throw them away and fill them in split, while look through them does not. Same sentence, different verbs, different rules.
Try it yourself
The quiz below is built almost entirely around the pronoun rule and the two-particle group.