ничего им не

don’t ... anything to them

→ ничто
phrase Rare #48,503
don’t ... anything to them Used before a verb; with a past-tense verb, it means “didn’t ... anything to them.”
RU: Ничего им не обещай.
EN: Don’t promise them anything.

Ничего им не давайте.

Don't give them anything.

Советую ничего им не говорить.

I advise you not to tell them anything.

Ты ничего им не сказал.

You didn't tell them anything.

— Славные парни (1990)

Ничего им не говори.

Don't tell them anything.