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How to Say "knew" in Spanish

English → Spanish

sabía

verbA2general
Use 'sabía' (imperfect tense) to describe a state of knowing something in the past, implying ongoing knowledge or a background fact.

Examples

Yo no sabía que tenías un hermano.

I didn't know you had a brother.

supo

/SOO-poh//ˈsu.po/

verbA2general
Use 'supo' (preterite tense) to indicate a sudden realization or the moment someone found out new information.
A cartoon image of a friendly fox placing the final, perfectly fitting wooden block into a simple shape-sorting puzzle, indicating that the solution has been found.

Examples

Ella supo la noticia por la radio esta mañana.

She found out the news on the radio this morning.

Él supo manejar la situación con mucha calma.

He managed to handle the situation very calmly.

Usted supo la respuesta correcta después de pensarlo un rato.

You (formal) figured out the correct answer after thinking about it for a while.

The 'Snapshot' Past Tense

This form, 'supo,' uses the past tense for completed actions (the preterite). It describes a single moment when the knowledge arrived, like taking a snapshot of a discovery.

Irregularity Alert

'Supo' comes from the verb 'saber,' but it completely changes its stem (the beginning part) to 'sup-' in this tense. You just have to memorize this pattern!

Preterite vs. Imperfect Meaning

Mistake: “Using 'supo' when you mean 'Ella ya tenía ese conocimiento' (She already had that knowledge).”

Correction: Use 'sabía' (imperfect) for existing knowledge: 'Ella sabía dónde estaba la llave' (She knew where the key was). Use 'supo' for the moment she found it out: 'Ella supo dónde estaba la llave' (She found out where the key was).

supiera

/soo-PYEH-rah//suˈpjeɾa/

verbB1general
Use 'supiera' (imperfect subjunctive) to talk about knowing something in a hypothetical or conditional context, often in 'if' clauses.
A storybook illustration of a small child sitting on the ground, looking up wistfully at a brightly glowing, open book floating just out of reach, symbolizing knowledge they wish they had.

Examples

Si yo supiera la respuesta, te la diría.

If I knew the answer, I would tell you.

Esperaba que ella supiera la verdad.

I hoped that she knew the truth.

No había nadie que supiera manejar ese sistema antiguo.

There was no one who knew how to operate that old system.

The Imperfect Subjunctive Mood

This form ('supiera') is used to express wishes, feelings, or doubts about a past event, or to set up hypothetical 'if' statements about the present or future.

The 'If...Then' Structure

When talking about unreal or hypothetical situations, you use 'si' (if) plus the Imperfect Subjunctive ('supiera'), followed by the Conditional tense ('diría').

Confusing 'saber' and 'conocer'

Mistake: “Using 'saber' when talking about knowing a person or place (e.g., 'Si supiera a Juan...').”

Correction: Use 'conociera' for people and places: 'Si conociera a Juan...' ('If I knew Juan...'). Use 'supiera' for facts or skills: 'Si supiera la dirección...' ('If I knew the address...').

Using the Indicative for Hypotheticals

Mistake: “Saying 'Si yo sé la respuesta, te la diría.'”

Correction: The structure requires the special Subjunctive form for the 'if' part: 'Si yo supiera la respuesta, te la diría.' (If I knew, I would tell you.)

Sabía vs. Supo: Ongoing Knowledge vs. Realization

The most common confusion is between 'sabía' and 'supo'. Remember, 'sabía' refers to a state of knowing that existed over time in the past, while 'supo' marks the specific moment of finding something out. Think 'I used to know' for 'sabía' and 'I found out' for 'supo'.

Related Translations

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