Verb + infinitive (quiero comer, sé leer)

Two verbs together

To say what you want, can, prefer or know how to do, put a conjugated verb first and the second verb in the infinitive (the -ar / -er / -ir form). Only the first verb changes for the person.

I want to eat now.
Quiero comer ahora.
Can you come tomorrow?
¿Puedes venir mañana?
first verb+ infinitivemeaning
quererquiero comerI want to eat
poderpuedes veniryou can come
preferirprefiero estudiarI prefer to study
sabersé leerI know how to read

Nothing goes between the two verbs — no to, no que: quiero comer, never quiero a comer.

Saber: knowing how

Saber + infinitive is to know how to do something — a skill you have. Poder is whether you can right now. So you can know how to do something and still not be able to:

I know how to speak English.
Sé hablar inglés.
I know how to read, but today I can't: I am tired.
Sé leer, pero hoy no puedo: estoy cansado.

Negatives and questions

No goes in front of the first verb, and a question just changes the tone:

I can't sleep.
No puedo dormir.
Can you read in Spanish?
¿Sabes leer en español?

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