estar haciendo algo que no se debe en inglés se dice be up to no good . También se traduce como get up to no good .
Frases que contienen estar haciendo algo que no se debe en inglés
His mom could always tell when he was up to no good -- it must have been that sixth sense mothers have
It's a cartoon about a mischievous youngster who delights in playing pranks, being rotten to his relatives and generally getting up to no good