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French · Verb · #8 most common

savoir

to know
to know how to

Irregular3rd ending

In the tables below, the stem is shown in black and the ending in purple.

1.

Présent

Current actions, habits, and general truths.

jesais
tusais
il/ellesait
noussavons
voussavez
ils/ellessavent

Je sais que tu viens ce soir.

I know that you are coming tonight.

Elle sait jouer du piano.

She knows how to play the piano.

2.

Passé Composé

Completed past actions with present relevance.

jeai su
tuas su
il/ellea su
nousavons su
vousavez su
ils/ellesont su

J'ai su qu'il avait gagné le prix.

I found out that he had won the prize.

Nous avons su la vérité hier.

We learned the truth yesterday.

3.

Imparfait

Ongoing or habitual past actions, descriptions, and background.

jesavais
tusavais
il/ellesavait
noussavions
voussaviez
ils/ellessavaient

Quand j'étais enfant, je savais nager.

When I was a child, I knew how to swim.

Ils savaient que le film était bon.

They knew that the movie was good.

4.

Futur Simple

Future events, promises, and formal predictions.

jesaurai
tusauras
il/ellesaura
noussaurons
voussaurez
ils/ellessauront

Je saurai la réponse demain.

I will know the answer tomorrow.

Elle saura comment résoudre le problème.

She will know how to solve the problem.

5.

Conditionnel Présent

Hypothetical outcomes, polite requests, and reported future.

jesaurais
tusaurais
il/ellesaurait
noussaurions
voussauriez
ils/elless sauraient

Je saurais te dire si je le savais.

I would know how to tell you if I knew it.

Nous saurions quoi faire dans cette situation.

We would know what to do in this situation.

6.

Subjonctif Présent

Doubt, desire, necessity, and emotion in subordinate clauses.

jesache
tusaches
il/ellesache
noussachions
voussachiez
ils/ellessachent

Il faut que je sache la vérité.

It is necessary that I know the truth.

Bien que tu saches la réponse, ne le dis pas.

Even though you know the answer, don’t say it.

7.

Plus-que-parfait

Actions completed before another past action.

jeavais su
tuavais su
il/elleavait su
nousavions su
vousaviez su
ils/ellesavaient su

Avant de partir, j'avais su qu'il allait pleuvoir.

Before leaving, I had known that it was going to rain.

Ils avaient su que le concert était annulé.

They had known that the concert was canceled.

"savoir" in other languages

Related verbs

Common questions
Is "savoir" regular or irregular in French?
"savoir" is an irregular French verb. It does not follow the standard 3rd conjugation pattern and must be memorized.
How do you conjugate "savoir" in the present tense?
In the Présent, "savoir" conjugates as: sais, sais, savons, and more. See the full table above.
What is the past tense of "savoir" in French?
In the Passé Composé, "savoir" conjugates as: ai su, as su, avons su, and more. See the full table above.
How common is "savoir" in French?
"savoir" (to know, to know how to) is one of the most commonly used verbs in French.