to  be  up to something
be
bi
bi
up
ʌp
ap
to
something
sʌmθɪng
samthing

Kahulugan at ibig sabihin ng "be up to something"sa English

to be up to something
01

to be involved in a particular activity or to be planning something, often with a sense of secrecy or suspicion 

Mga Halimbawa
I think he's up to something because he's been acting very secretive lately. 
LanGeek
I-download ang App
langeek application

Download Mobile App

App Store