How to Say "be certain" in Spanish
The Spanish word for “be certain” is “asegúrese” — B1 level. This is a very common word in everyday Spanish.
Examples
Por favor, asegúrese de cerrar la puerta al salir.
Please, make sure to close the door when you leave.
Asegúrese de que todos los documentos estén firmados.
Ensure that all the documents are signed.
Antes de comenzar, asegúrese de haber leído las instrucciones.
Before starting, make sure you have read the instructions.
The Hidden 'You'
The word 'asegúrese' is a command for 'usted' (the formal way to say 'you'). The 'se' at the end is like saying 'yourself'.
The 'De' Rule
In Spanish, you almost always need to put 'de' after this word if an action follows it, like 'asegúrese de cerrar' (make sure to close).
Forgetting the 'De'
Mistake: “Asegúrese cerrar la puerta.”
Correction: Asegúrese de cerrar la puerta. Spanish requires the 'de' to link the command to the next action.
Using the wrong 'You'
Mistake: “Asegúrese (talking to a close friend).”
Correction: Use 'Asegúrate' for friends and 'Asegúrese' for people you don't know well or want to show respect to.
Related Translations
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