let in — allow entry
phrasal verbB1IELTS 5+neutralcommon
to allow someone or something to enter a place, such as a room, building, or area.
Say it like a native
Textbook Could you permit me to enter the building?
Native Can you let me in?
'Let in' is the everyday verb for allowing entry. 'Permit me to enter' is absurdly formal.
Pattern: let + someone/something + in
In use
- Could you let me in? I forgot my keys.daily life
- During the interview, I was nervous because I had to wait outside until someone came to let me in.IELTS speaking
Common mistake
✗ She let in me.
✓ She let me in.
With a pronoun, the object goes in the middle — 'let me in', not 'let in me'.
Common collocations
let + in— let me in, the cat in, some air in, the light in
Don't confuse it
'Let in' is about allowing entry, while 'go in' means you enter yourself.