Take off
is a common phrase in English.
It’s most commonly used as a ‘phrasal verb’: VERB + PREPOSITION
1. to remove something, especially a piece of clothing:
I’d better take my shoes off.
2. if an aircraft takes off, it leaves the ground and starts flying:
The plane should take off on time.
3. to become successful or popular very fast:
Her business has really taken off.
4. to rest or not go to work:
I’m taking Monday off work to relax and go shopping.
5. to leave a place (sometimes suddenly)
As soon as she saw her ex boyfriend arrive, she just took off.
These meanings have OBJECTS, so we usually put it between ‘take’ and ‘off’
This is called ‘transitive’ in English teaching.
take my shoes off. (shoes is the object.)
taking Monday off. (Monday is the object.)
These meanings DON’T have OBJECTS, so ‘take’ and ‘off’ stay together.
This is called ‘INtransitive’ in English teaching.
she just took off.
take off = ‘leave’ or ‘depart’. You can’t depart something, right?
has really taken off.
take off on time.
These have almost the same meaning. Airplanes or careers don’t take something off, right? They just take off.
So you might ask: how is this Construction English?
