Porque, por qué, porqué, por que in Spanish: which is which

Spanish has four spellings that sound almost the same, and they trip up native writers too. Por qué (two words, accent) means “why” and lives in questions, including indirect ones. Porque (one word, no accent) means “because” and answers that question. El porqué (one word, accent, used with el or un) is a noun meaning “the reason”. Por que (two words, no accent) is the rare one: preposition por plus relative que, “for which”. In real life you mostly need the first two: a question takes por qué, and the answer takes porque.

Por qué: asking why

Use the two-word, accented por qué whenever you ask for a reason. The accent plus the two words are what mark it as a question word, exactly the same accent logic you sort out with qué vs cuál.

¿Por qué no vienes?
Why aren’t you coming?

It keeps the accent in an indirect question too, even without the question marks.

No sé por qué no vino.
I don’t know why he didn’t come.

Porque: giving the reason

The one-word, unaccented porque answers the question. It introduces the reason, like English “because”.

—¿Por qué? —Porque sí.
“Why?” “Just because.”

No fui porque estaba cansado.
I didn’t go because I was tired.

El porqué: the noun

Written as one word but with an accent, porqué is a noun meaning “the reason”. You can spot it because it takes an article (el, un) and even has a plural, los porqués.

Quiero entender el porqué.
I want to understand the reason.

Por que: the rare one

This last one is just the preposition por followed by the relative que (“for which”), often with an optional la or el between them. You will see it mostly in formal writing, so don’t worry about it much.

La causa por (la) que luchamos.
The cause for which we fight.

Common mistakes

Writing the question as one word

A question needs the two-word, accented form.

¿Porque estudias? → ¿Por qué estudias?
Why do you study? The question always takes por qué.

Writing the answer with an accent and two words

The answer is one word with no accent.

Estudio por qué me gusta. → Estudio porque me gusta.
I study because I like it. The reason is introduced by porque.

Dropping the accent in an indirect question

An embedded question still asks “why”, so it stays accented.

No sé porque no vino. → No sé por qué no vino.
I don’t know why he didn’t come. Por qué keeps its accent here too.

When you hear a quick ¿Por qué? and answer Porque…, the words sound alike but the spelling is doing real work. In Fluera you build that question-and-answer pair in short exchanges, so you choose the right form by ear and in writing at the same time. Try it when you practice Spanish and the four spellings stop blurring together.

Practice