Separable
With a noun object, both orders are correct:
Put on your coat. · Put your coat on.
Turn off the radio. · Turn the radio off.
More you already know
| Together | Split |
|---|---|
| throw away the box | throw the box away |
| hand in the report | hand the report in |
| put off the meeting | put the meeting off |
| fill in the form | fill the form in |
| pick up the bag | pick the bag up |
A long object
If the object is a long phrase, keep the phrasal verb together and put the object at the end:
Put off the meeting with the new client.