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How to Say "to require" in Spanish

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necesitar

neh-seh-see-TAHR/ne.se.siˈtaɾ/

verbA1formal or technical requirement
Use 'necesitar' when you mean 'to need' something essential or a formal prerequisite, like documents or basic provisions.
A small, empty blue watering can sits on dry, cracked earth. Above it, a large, friendly gray rain cloud is beginning to pour a single stream of water toward the can's spout, illustrating a requirement.

Examples

Necesito un pasaporte para viajar a ese país.

I need a passport to travel to that country.

Necesito un café antes de empezar a trabajar.

I need a coffee before starting work.

¿Tú necesitas ayuda con ese problema de matemáticas?

Do you need help with that math problem?

El coche necesita mucha gasolina para este viaje.

The car requires a lot of gasoline for this trip.

Needing an Action (Same Subject)

If you need yourself to do something, use 'necesitar' followed directly by the base form of the second verb (the infinitive): 'Necesito estudiar' (I need to study).

Needing Someone Else to Act (Different Subject)

When you need another person to take action, you must use 'que' followed by the special verb form (the subjunctive). The second verb changes form: 'Necesito que estudies' (I need you to study).

Using 'Tener' for Requirement

Mistake: “Tengo dinero (I have money).”

Correction: Necesito dinero (I need money). 'Tener' means 'to possess,' not 'to require.' Only use 'necesitar' when you feel a requirement or lack something.

Incorrect Verb Form After 'Que'

Mistake: “Necesito que tú estudias.”

Correction: Necesito que tú *estudies*. If the subject changes after 'que,' the verb must change to the subjunctive (the special 'e' ending for -ar verbs).

querer

keh-REHR/keˈɾeɾ/

verbB1impersonal sense ('it requires')
Use 'querer' in its impersonal form ('se requiere') to indicate that something is asked for or demanded, often in a less direct way than 'necesitar'.
A determined hiker stands at the beginning of a clear, winding path that leads toward a sunny mountain peak in the distance, symbolizing their purpose.

Examples

Se requiere puntualidad para esta reunión.

Punctuality is required for this meeting.

Quiso arreglar el coche pero no pudo.

He tried to fix the car but he couldn't.

Este proyecto quiere mucho esfuerzo.

This project requires a lot of effort.

Querían entrar a la fuerza.

They attempted to enter by force.

Past Tense and Attempt

When used in the simple past (preterite: quise, quiso), 'querer' often shifts meaning from 'wanted' to 'tried' or 'attempted,' especially when the outcome was unsuccessful.

Overuse for 'Try'

Mistake: “Quiero probar el nuevo café.”

Correction: Intento probar el nuevo café. (Use 'intentar' or 'tratar de' when the focus is purely on the action of 'trying' something out, not 'wanting' to.)

Necesitar vs. Querer

Learners often confuse 'necesitar' and 'querer' when 'to require' means 'to demand' or 'to ask for'. Remember, 'necesitar' implies a fundamental need or prerequisite, while 'se requiere' (using 'querer') is more about a stated demand or condition.

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