certifique-se que

make sure that

→ certificar
phrase Rare #38,278
make sure that Used to tell someone to ensure something happens or is true. Often followed by a clause in the subjunctive in Portuguese.
PO: Certifique-se que a porta esteja fechada.
EN: Make sure that the door is closed.

Certifique-se que ele a assine.

Make sure he signs it.

— Ventos da Liberdade (2006)

Certifique-se que saibam que sou eu.

Make sure they know it's me.

— Marty Supreme (2025)

E, por favor, certifique-se que meu pai não descubra.

And please make sure my father doesn’t find out.

— Munna Bhai M.B.B.S. (2003)

Certifique-se que as velas não se apaguem.

Make sure the candles don't go out.

— Lady Vingança (2005)