Conversational Phrases/U
Conversational phrases beginning with U. Select a phrase for more details.unless I'm mistaken | if I'm not mistaken
This is a polite thing to say if you're sure what you're saying is correct.
up to no good INFORMAL
to be doing something bad, illegal or naughty
up to you
You can say this if you want someone else to make a decision, or if you don't care what they decide.