debes tener mucho cuidado

you must be very careful

→ deber
phrase Rare #43,589
you must be very careful The phrase changes form depending on who needs to be careful; for example, debemos means “we must” and debe means “he/she must” or “you must” (formal).
SP: Debes tener mucho cuidado al cruzar la calle.
EN: You must be very careful when crossing the street.

Debes tener mucho cuidado porque está prohibida.

You have to be very careful because it’s forbidden.

— Voces Inocentes (2005)

Amaia, debes tener mucho cuidado.

Amaia, you need to be very careful.

— Legado en los huesos (2019)

Debes tener mucho cuidado.

You must be very careful.

Escucha, debes tener mucho cuidado.

Listen, you must be very careful.

— El Perfecto Asesino (1994)