Use “conocer,” not “saber,” when talking about knowing a person — the most natural translation is “Yo la conozco.”
You’re in a conversation about a mutual friend and want to say, “I know her.” Your brain reaches for the Spanish word for “know.” If you’ve only learned one verb for that concept, you’ll almost certainly pick the wrong one. That small mistake can change your meaning completely.
Spanish has two verbs that both map to English “to know,” and choosing between them is one of the first real hurdles learners face. This article walks through when to use each one, how to form the phrase “know her,” and the grammar pitfalls hiding behind that short sentence. By the end, you’ll feel confident saying “Yo la conozco” — and knowing why that’s right.
The Verb Choice That Makes Or Breaks The Sentence
The most common learning point in Spanish is the divide between saber and conocer. Both translate as “to know,” but they live in different territories. Saber covers facts, information, and skills — “I know the answer,” “She knows how to swim.” Conocer handles people, places, and things you’re familiar with.
That means when the object is a person, conocer is the only option. “I know María” becomes “Conozco a María.” Notice the little “a” before the name — that’s the personal a, a grammar rule that appears when the direct object is a specific person. Without it, the sentence sounds incomplete.
Why The Confusion Sticks Around
English gives you one word for both jobs, so your brain doesn’t build a mental fence. That fence is exactly what you need. The confusion usually hits because the two verbs look similar in meaning but behave differently in structure. Here are the key differences:
- People vs facts: Conocer expresses familiarity with a person; saber expresses knowledge of a fact or skill. If you want to say you’ve met someone, always use conocer.
- Places and things: You conocer a city, a book, a movie. You saber a language or a piece of trivia. The line is “acquaintance vs information.”
- The personal a: After conocer and before a person’s name or reference, you must add a. “Conozco a mi profesor.” No such article follows saber.
- Conjugation patterns: Conocer is irregular in the present tense (yo conozco), while saber has its own irregular yo form (yo sé). They don’t follow regular -er verb rules.
- Preterite meaning shift: In the past tense, conocer often means “met,” and saber means “found out.” That difference is a major trap for intermediate learners.
Once you internalize these contrasts, you stop guessing. The choice becomes automatic.
How To Say “I Know Her” Naturally
The direct translation is “Yo la conozco.” Break it down: yo = I, la = her (direct object pronoun), conozco = first-person present of conocer. The pronoun la replaces a feminine noun — if you were referring to a male friend, it would be lo. The pronoun always sits right before the conjugated verb.
You’ll find the full phrase with examples in the I know her translation at SpanishDict, which breaks down the same sentence with audio and context sentences. Notice that the verb is conocer, never saber, because the object is a person. “Yo la sé” would mean “I know her” as a fact about her, like knowing her birthday — which is possible but much less common and requires a different structure.
The present tense conjugation of conocer has an irregular stem: conozc- appears for the yo form (conozco) and throughout the present subjunctive. The only fully regular forms are tú conoces, él/ella conoce, nosotros conocemos, and ellos conocen. That irregular z in conozco is the signature of this verb.
When The Meaning Shifts — Preterite And Subjunctive
Your sentence choice changes in other tenses. In the preterite, conocer takes on a new meaning: “to meet” or “to come to know” for the first time. “La conocí ayer” means “I met her yesterday.” If you use the imperfect, “La conocía,” it means “I used to know her” (a past state). That distinction is critical for storytelling.
In the present subjunctive, the stem conozc- appears in all forms except nosotros and vosotros: “Espero que la conozcas” — I hope you know her. The subjunctive is common after expressions of emotion, doubt, or desire. Here’s a quick conjugation table for the present indicative and present subjunctive:
| Subject | Present Indicative | Present Subjunctive |
|---|---|---|
| yo | conozco | conozca |
| tú | conoces | conozcas |
| él/ella/usted | conoce | conozca |
| nosotros | conocemos | conozcamos |
| ellos/ellas/ustedes | conocen | conozcan |
Every form in the subjunctive uses the irregular stem conozc-. The nosotros form (conozcamos) and vosotros form (conozcáis) also shift, though vosotros is less common in Latin American Spanish.
Common Questions And Quick Translations
Learners often ask, “Do I know her?” — which in Spanish is “¿La conozco?” The same pronoun-verb order applies. Per the Know Her In Spanish entry at Reverso, the translation stays consistent: conocer for a person, saber for a fact. If you’re wondering whether you’ve ever met someone, you always use conocer.
Other useful variations:
| English Phrase | Spanish Translation |
|---|---|
| I know her well | La conozco bien |
| You know her (informal) | La conoces |
| You know her (formal) | La conoce |
| I used to know her | La conocía |
Practice these aloud. The rhythm of “Pronoun + verb” (La conozco) is a core pattern you’ll use with many other verbs in Spanish — te veo (lo entiendo (I understand it). Once you lock in the la conozco pattern, you’ve unlocked a whole system of object‑pronoun placement.
The Bottom Line
Saying “know her” in Spanish comes down to one choice: conocer for people, places, and things you’re familiar with; saber for facts and skills. The most common and natural phrase is “Yo la conozco,” and it never changes the verb. If you remember “person = conocer,” you’ll avoid the biggest trap.
For structured practice with verb conjugations and direct-object pronouns, a certified Spanish teacher (DELE, ELE, or similar) can run dialogues that lock in the pattern faster than any app — especially if you’re aiming to hold real conversations with native speakers in your target region, whether Spain or Latin America.