in league with
US /ɪn liɡ wɪð/
UK /ɪn liɡ wɪð/

1.
em conluio com, aliado com
working together with someone, especially secretly, to achieve something
:
•
The rumors say he was in league with the competition.
Os rumores dizem que ele estava em conluio com a concorrência.
•
She denied being in league with the protesters.
Ela negou estar em conluio com os manifestantes.