не задерживай

don't delay

→ не
phrase Rare #49,803
don't delay An informal singular command; depending on context, it can also mean “don't hold up” or “don't keep waiting.”
RU: Не задерживай нас, мы опаздываем.
EN: Don't hold us up; we're running late.

Не задерживай собрание!

Don't keep the meeting waiting!

— Afonya (1975)

Не задерживай очередь.

Don't hold up the line.

— ПиКей (2014)

Не задерживай, говорю!

Don't hold me up, I said!

— Ballad of a Soldier (1959)