He threatened to inform on his accomplices
The witness agreed to inform on the gang leader
She felt guilty for having to inform on her friend
They tried to get him to inform on the other members
Don't inform on your colleagues, even if you're angry
The child was told not to inform on his brother
He was caught trying to inform on the company's illegal activities
The detective pressured the suspect to inform on the rest of the crew
It's a serious offense to inform on someone to the authorities
She considered informing on the person who stole her bike
I heard you might inform on our friend.
I would never do that; loyalty is important.
I'm glad to hear you say that.
The witness agreed to inform on the suspect
The witness will testify against the suspect
The witness will betray the suspect's actions