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

1.
en connivencia con, aliado con
working together with someone, especially secretly, to achieve something
:
•
The rumors say he was in league with the competition.
Los rumores dicen que estaba en connivencia con la competencia.
•
She denied being in league with the protesters.
Ella negó estar en connivencia con los manifestantes.