you need
You need plenty of water.
You need to wait.
Antes que faças isso, há algo que tu precisas saber.
Before you do that, there's something you need to know.
Tu precisas de um novo teclado?
Do you need a new keyboard?
You need to study more.
Why do you need to go?
Tu precisas trabalhar aos domingos?
Do you need to work on Sundays?
Tu precisas de um transplante de coração.
You need a heart transplant.
Do you need instructions?
You need a drink.