You Need and You Know
Use necesita for polite “you need” and sabe for polite “you know.” Ask useful questions, make negatives, and combine these new forms with familiar building blocks from Modules 1–8.
You need: necesita
Use necesita to say what another person needs and to ask polite questions with familiar words.
One new building block
Spanish often leaves out usted. Here, necesita by itself can mean you need.
Build the meaning step by step
Compare necesito and necesita
Necesito means I need. Necesita means polite you need.
Necesito información. = I need information. Necesita información. = You need information.
You know: sabe
Add sabe to say what another person knows, ask what they know, and connect it to quiere, puede, and necesita.
One more building block
Ask for connected information
Combine familiar building blocks
Sabe qué quiere. = You know what you want.
Necesita saber dónde está. = You need to know where it is.
No sabe si puede verlo. = You do not know if you can see it.
Necesito and sé change when speaking politely to you
- Necesito means “I need.” Necesita means polite “you need.”
- Sé means “I know.” Sabe means polite “you know.”
- Put no before the verb: no necesita, no sabe.
- After necesita, another verb stays in its basic form: necesita saber, necesita ver.
- Use qué, dónde, por qué, and si to connect useful ideas.