Examples of using "замышляет" in a sentence and their english translations:
What is she up to?
What is the cat up to?
What's Tom up to now?
What is she up to?
Tom is plotting something.
He is up to some monkey business.
I know what Tom is up to.
Tom is definitely up to something!
I know exactly what Tom is up to.
What do you think Tom is up to?
I am quite in the dark as to what she is going to do.
It looks like Tom is up to something.
He is up to some monkey business.
"Are you sure he's not up to something?" "Look, I appreciate your concern, I do, but we don't have enough reason to worry about this now."