Fluir Present Tense Conjugation in Spanish
The present tense of fluir — “to flow” in English — is the form you need for what happens now, for habits and for general truths. This page gives you the full present conjugation table for fluir with all six persons, explains exactly how the tense is formed for this verb, shows when to use it with real examples, and finishes with a quiz so you can test yourself. Fluir means to flow, and it is used for water, traffic, ideas and conversations: fluir por el río, fluir la conversación. It is a -uir verb: yo fluyo, él fluye, with y before the vowel endings. Its gerund is fluyendo. To see it in a real sentence: Fluyo por el río hacia el mar. — “I flow through the river to the sea.”
Present tense conjugation table: fluir
Every person of fluir in the present tense. The gerund is fluyendo and the past participle is fluido.
| Person | Form |
|---|---|
| yo | fluyo |
| tú | fluyes |
| él/ella/Ud. | fluye |
| nosotros/as | fluimos |
| vosotros/as | fluís |
| ellos/ellas/Uds. | fluyen |
The gerund is fluyendo, which you use with estar to say what is happening right now: “Estoy fluyendo” means the action of fluir is in progress at this very moment. The past participle is fluido, which you use with haber in the perfect tenses: “he fluido” is the present perfect, used for a completed action. Keep both forms in mind as you read the examples below, because the present is only one part of how fluir is used.
How the present of fluir is formed
The present of fluir is built from the stem flu plus the present endings for -ir verbs. Take the infinitive, drop the -ir ending, and add the ending that matches the person. The table below shows the endings, and the full table above shows them attached to the stem.
| Person | Ending | Form |
|---|---|---|
| yo | -o | fluyo |
| tú | -es | fluyes |
| él/ella/Ud. | -e | fluye |
| nosotros/as | -imos | fluimos |
| vosotros/as | -ís | fluís |
| ellos/ellas/Uds. | -en | fluyen |
fluir is not fully regular in form: this verb is a -uir verb: the stem vowel i becomes y before a vowel ending, so the present is fluyo and fluye, and the gerund is fluyendo. The endings in the table above are the regular -ir endings, so once you know the pattern, the whole tense follows. The forms that show the pattern most clearly are fluyo and fluye.
The gerund of fluir is fluyendo and the past participle is fluido. Both are the forms you need for the progressive and the perfect tenses with haber.
When to use the present of fluir
The present is not a single-purpose tense. Below are the five situations where you will use fluir in the present most often. Each one comes with a real example, so read the rule, then say the example out loud.
1. A routine or habit
The present tense of fluir is the tense for what happens regularly. When something is part of your routine, your week or your normal life, the present is the right choice, and fluir is no exception. The time words that go with it are todos los días, cada semana, siempre and a menudo.
Example: “Fluyo por el río hacia el mar.” — I flow through the river to the sea.
2. A general fact
The present tense also states facts that are true in general, not just today. When you describe what fluir means in the world — what it does, who it affects, how it works — the present is the tense to use. There is no time limit on the statement, so no past or future form is needed.
Example: “Fluye con calma en la reunión.” — He/she flows calmly in the meeting.
3. Something happening right now
The present tense describes what is happening at this very moment. You do not need the progressive (estar plus the gerund) to say what is going on now: the simple present does the job in Spanish, and it is the more common choice in everyday speech.
Example: “Fluyo sin parar en la ciudad.” — I flow without stopping in the city.
4. A plan or arrangement
Spanish uses the present tense for plans that are already fixed, especially with a time expression such as mañana or el lunes. When the arrangement is made, the present tense states it as a fact, and fluir follows the same rule as every other verb.
Example: “Mañana, nosotros fluimos como el agua en el canal.” — Tomorrow, we flow like water in the canal.
5. Asking and answering questions
Questions in the present tense ask about routines, facts and what is happening now. The answer uses the same tense, so a question and its answer stay in the present together. This is the pattern you will hear most often in conversation.
Example: “¿Fluyes con calma en la reunión?” — Do you flow calmly in the meeting?
The present vs the preterite: how to choose
The closest tense to the present is the preterite, and choosing between them is one of the first decisions in Spanish. The rule is simple: the present reports what happens now, what happens regularly, or what is generally true, while the preterite reports one finished action in the past. The three pairs below use the same verb, so the only thing that changes is whether the action is happening now or is already finished. Time words help: ahora and todos los días point to the present, while ayer and anoche point to the preterite.
Present: “Fluyo por el río hacia el mar.” — I flow through the river to the sea.
Preterite: “Fluí por el río hacia el mar.” — I flowed through the river to the sea.
The present sentence describes what happens now or regularly; the preterite sentence reports one finished action in the past. That difference — now versus finished — is the whole decision.
Present: “Fluye con calma en la reunión.” — He/she flows calmly in the meeting.
Preterite: “Fluyó con calma en la reunión.” — He/she flowed calmly in the meeting.
The present sentence describes what happens now or regularly; the preterite sentence reports one finished action in the past. That difference — now versus finished — is the whole decision.
Present: “Fluimos sin parar en la ciudad.” — We flow without stopping in the city.
Preterite: “Fluimos sin parar en la ciudad.” — We flowed without stopping in the city.
The present sentence describes what happens now or regularly; the preterite sentence reports one finished action in the past. That difference — now versus finished — is the whole decision.
Example sentences: fluir in the present
Read these eight sentences out loud. They cover all six persons, so by the end you will have seen every form in the table used in a real sentence. Pay attention to the words around the verb — the time expressions, the objects, the other verbs — because those are what make each sentence sound natural.
“Fluyo por el río hacia el mar.” — I flow through the river to the sea.
“Fluyes con calma en la reunión.” — You flow calmly in the meeting.
“Fluye sin parar en la ciudad.” — He/she flows without stopping in the city.
“Fluimos como el agua en el canal.” — We flow like water in the canal.
“Fluís por el río hacia el mar.” — You flow through the river to the sea.
“Fluyen con calma en la reunión.” — They flow calmly in the meeting.
“Fluyo sin parar en la ciudad.” — I flow without stopping in the city.
“Fluye como el agua en el canal.” — He/she flows like water in the canal.
Common mistakes with fluir in the present
These are the errors learners actually make with this verb in this tense. Each one shows the wrong version, the right version, and why the correction matters.
Wrong: “Yo fluye por el río hacia el mar.” Right: “Yo fluyo por el río hacia el mar.” Why: Yo needs the yo form fluyo. The form fluye belongs with él, ella or Ud.
Wrong: “Yo fluo con calma en la reunión.” Right: “Yo fluyo con calma en la reunión.” Why: Fluir is a -uir verb: the stem vowel i becomes y before a vowel ending, so the present is fluyo and fluye, and the gerund is fluyendo, so the first-person present is fluyo, not fluo.
Wrong: “Ayer yo fluyo con calma en la reunión.” Right: “Ayer yo fluí con calma en la reunión.” Why: The present tense cannot describe a finished action yesterday. Ayer forces the preterite, so the form must change to fluí.
Wrong: “Ellos fluye con calma en la reunión.” Right: “Ellos fluyen con calma en la reunión.” Why: Ellos needs the ellos form fluyen. The singular fluye belongs with él, ella or a singular noun.
Quiz: fluir in the present
Choose the correct answer for each question, then check the answer key. Every answer is explained, so a wrong answer still teaches you something.
1. Complete the sentence: “Yo ___ por el río hacia el mar.”
- (a) fluyo
- (b) fluyes
- (c) fluye
Answer: fluyo — The yo form of fluir in the present is fluyo.
2. Complete the sentence: “Tú ___ con calma en la reunión.”
- (a) fluyo
- (b) fluye
- (c) fluyes
Answer: fluyes — The tú form of fluir in the present is fluyes.
3. Complete the sentence: “Él/ella ___ sin parar en la ciudad.”
- (a) fluyes
- (b) fluye
- (c) fluyo
Answer: fluye — The él/ella form of fluir in the present is fluye.
4. Complete the sentence: “Nosotros/as ___ como el agua en el canal.”
- (a) fluimos
- (b) fluyo
- (c) fluyes
Answer: fluimos — The nosotros/as form of fluir in the present is fluimos.
5. Complete the sentence: “Vosotros/as ___ por el río hacia el mar.”
- (a) fluyo
- (b) fluyes
- (c) fluís
Answer: fluís — The vosotros/as form of fluir in the present is fluís.
6. Complete the sentence: “Ellos/ellas ___ con calma en la reunión.”
- (a) fluyes
- (b) fluyen
- (c) fluyo
Answer: fluyen — The ellos/ellas form of fluir in the present is fluyen.
7. What does fluir mean in English?
- (a) to flow
- (b) to run, to flow
- (c) to be about
Answer: to flow — Fluir means to flow.
8. Which sentence is in the present?
- (a) Fluí por el río hacia el mar.
- (b) Fluiré por el río hacia el mar.
- (c) Fluyo por el río hacia el mar.
Answer: Fluyo por el río hacia el mar. — “Fluyo por el río hacia el mar.” is in the present. The other two use different tenses.
Frequently asked questions
Is fluir regular in the present?
Fluir is a spelling-change verb in the present: it is a -uir verb: the stem vowel i becomes y before a vowel ending, so the present is fluyo and fluye, and the gerund is fluyendo. The endings are the regular -ir endings, so the table above follows the pattern exactly.
What is the gerund and the past participle of fluir?
The gerund is fluyendo, used with estar for the progressive: estoy fluyendo. The past participle is fluido, used with haber in the perfect tenses: he fluido.
What should I watch out for with fluir?
Fluir is a -uir verb: yo fluyo, él fluye, with y before the vowel endings. In the present, the form to fix in your memory first is fluyo, because the yo form shows the stem pattern for the whole tense.
How do I practise fluir in the present?
Say the six forms in the table out loud with the examples above, then use the fluir examples and quiz page for more sentences, and the Spanish Verb Quiz to test the forms under pressure.
Related pages
- Full conjugation of fluir — every tense of fluir in one place.
- Fluir examples and quiz — more sentences with fluir and a ten-question quiz.
- Spanish present guide — how the present works for all Spanish verbs.
- Spanish verbs — the hub for every Spanish verb on VerbFlow.
- Present tense conjugator — conjugate any verb in the present instantly.
- Verb quiz — test yourself on fluir and other verbs.