you have to be careful
Tienes que tener cuidado de no romperlo.
You have to be careful not to break it.
Tienes que tener cuidado con lo que dices.
You have to be careful what you say.
Tienes que tener cuidado o si no lo perderás otra vez.
You have to be careful, or you’ll lose it again.
Felipe, usted sabe mejor que yo que tienes que tener cuidado.
Felipe, you know better than I do that you have to be careful.
— Intocable (2011)
Tienes que tener cuidado con lo que dices a gente que se ofende fácilmente.
You have to be careful what you say to people who are easily offended.