я за него

for him

→ я
phrase Uncommon #22,893
for him Depending on the verb or context, за него can mean “on his behalf,” “for him,” or “in support of him.” On its own, я за него means “I’m for him” or “I support him.”
RU: Я за него отвечаю.
EN: I’m responsible for him.

Я за него не голосовал.

I didn’t vote for him.

Я за него уже заплатил.

I've already paid for it.

Я за него очень рад.

I'm very happy for him.

Я за него расписался.

I signed the marriage certificate for him.

— Дневной дозор (2006)

Это я за него плачу.

I'm paying for him.

— Тар (2022)

Я за него немного беспокоюсь.

I'm a little worried about him.

Я за него.

I'm for him.

— Генрих V: Битва при Азенкуре (1989)

Я за него плачу.

I'm paying for him.

— С меня хватит! (1993)