| Idiom | Meaning | Example | 
| in trouble | 
accused, arrested, punished
 | 
If you steal, you'll be in trouble. You'll be arrested.
 | 
| in tune (music) | 
at the correct pitch, not sharp or flat
 | 
It was an excellent concert. Even the children sang in tune.
 | 
| in tune | 
believing the same, on the same wavelength
 | 
He's in tune with our religious beliefs. He believes in God.
 | 
| in two shakes (of a lamb's tail) | 
very soon, in a couple of seconds, in a sec
 | 
I'll be with you in two shakes. I just have to turn off the lights.
 | 
| in writing | 
written and signed, in black and white
 | 
The company guarantees this pen for life. I have it in writing.
 | 
| in your bad books | 
one of the people you do not like
 | 
If I don't agree with you, I'll be in your bad books, right?
 | 
| in your corner | 
hoping you will win, on your side
 | 
Hey, man, I'm in your corner. I'll help you get your diploma.
 | 
| in your face | 
placed in front of you, right in front of you
 | 
Every time I turn on the TV, that ad is in my face. I'm sick of it.
 | 
| in your hair | 
bothering you, bugging you
 | 
If you have too many kids in a class, they get in your hair.
 | 
| in your mind's eye | 
in a picture in your mind, in your memory
 | 
In my mind's eye, I can see her face - clearer than a photo.
 |