Componer in the Preterite Tense
Componer means “to compose, to fix”, and this page covers exactly one thing: componer in the preterite tense. The preterite is the tense Spanish speakers reach for when they talk about what is finished and done. On this page you will find the full preterite table for componer, how the tense is formed for this verb, the situations where it is used, how it differs from the imperfect, worked examples, the mistakes learners make most often, an eight-question quiz with explained answers, and answers to the questions students ask about componer in the preterite. For example: “Ayer, yo compuse una canción para el concurso.” — Yesterday, I composed a song for the competition. Everything on this page uses the forms of componer exactly as they are conjugated in the preterite, so you can trust every form you see here.
Componer in the Preterite Tense — full table
| Person | Form |
|---|---|
| yo | compuse |
| tú | compusiste |
| él/ella/Ud. | compuso |
| nosotros/as | compusimos |
| vosotros/as | compusisteis |
| ellos/ellas/Uds. | compusieron |
Gerund: componiendo · Past participle: compuesto
The gerund is componiendo, which you use with estar to say what is happening right now: “Estoy componiendo” means the action of componer is in progress at this very moment. The past participle is compuesto, which you use with haber in the perfect tenses: “he compuesto” is the present perfect, used for a completed action. Keep both forms in mind as you read the examples below, because the preterite is only one part of how componer is used.
How the preterite of componer is formed
Componer does not use one regular stem in this tense, so the forms below do not follow the simple stem + endings pattern. This tense is irregular for this verb: it follows the pattern of poner, with a -g- in the present (as in compongo), a -s- stem in the preterite (as in compuse), and an irregular participle (as in compuesto). Learn the forms in the table rather than guessing them from the infinitive. Learn the six forms as a set: yo compuse, tú compusiste, él/ella/Ud. compuso, nosotros/as compusimos, vosotros/as compusisteis, ellos/ellas/Uds. compusieron.
The irregularity of componer is in its past participle, compuesto, not in the preterite, so the table above is the whole story for this tense. Remember the participle for the perfect tenses: he compuesto, has compuesto, ha compuesto.
When to use the preterite of componer
The preterite is not a single-purpose tense. Below are the five situations where you will use componer in the preterite most often. Each one comes with a real example, so read the rule, then say the example out loud.
1. One finished action
The preterite reports a single action that started and finished in the past. The action is done, counted once, and the story moves on. Example: “Ayer, yo compuse una canción para el concurso.” — Yesterday, I composed a song for the competition.
2. A sequence of events
In a story, each preterite form is one step forward in time. When several things happened one after another, the preterite lists them in order. Example: “Nosotros compusimos el equipo con los mejores.” — We composed the team with the best players.
3. A specific time marker
Time words such as ayer, anoche, el año pasado and la semana pasada point to the preterite. They name a finished moment, and the verb must match. Example: “Él compuso la radio rota del abuelo ayer.” — He composed grandad's broken radio yesterday.
4. A sudden change or interruption
The preterite describes sudden changes and interruptions: something happened, and the situation was different afterwards. Example: “Ellos compusieron un poema para su madre de repente.” — They composed a poem for his mother suddenly.
5. A completed time frame
When an action took place inside a period of time that is now over, the preterite is the right tense, because the period itself is finished. Example: “Tú compusiste una canción para el concurso la semana pasada.” — You composed a song for the competition last week.
Preterite Tense vs Imperfect: how to choose
The closest tense to the preterite is the imperfect, and choosing between them is one of the hardest decisions in Spanish. The rule is simple: the preterite reports one finished action, while the imperfect describes background, habits in the past, or an action that was in progress when something else happened. The three pairs below use the same verb, so the only thing that changes is whether the action is finished and counted, or ongoing and descriptive. Time words help: ayer and de repente point to the preterite, while mientras and todos los días in the past point to the imperfect.
Preterite Tense: “Ayer, yo compuse una canción para el concurso.” — Yesterday, I composed a song for the competition.
Imperfect: “Yo componía una canción para el concurso cada día.” — I used to compose a song for the competition every day.
The preterite sentence reports one finished action; the imperfect sentence describes a habit in the past. Ayer points to the preterite, cada día in the past points to the imperfect.
Preterite Tense: “Anoche, él compuso el equipo con los mejores.” — Last night, he composed the team with the best players.
Imperfect: “Él componía el equipo con los mejores todos los días.” — He used to compose the team with the best players every day.
Anoche names one finished night, so the preterite is right; todos los días in the past describes a routine, so the imperfect is right.
Preterite Tense: “Nosotros compusimos la radio rota del abuelo ayer.” — We composed grandad's broken radio yesterday.
Imperfect: “Nosotros componíamos la radio rota del abuelo cuando éramos jóvenes.” — We used to compose grandad's broken radio when we were young.
The preterite sentence counts one finished action; the imperfect sentence describes how things used to be. That difference — finished event versus background — is the whole decision.
Example sentences: componer in the preterite
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.
“Compuse una canción para el concurso.” — I composed a song for the competition.
“Compusiste el equipo con los mejores.” — You composed the team with the best players.
“Compuso la radio rota del abuelo.” — He/she composed grandad's broken radio.
“Compusimos un poema para su madre.” — We composed a poem for his mother.
“Compusisteis una canción para el concurso.” — You composed a song for the competition.
“Compusieron el equipo con los mejores.” — They composed the team with the best players.
“Compuse la radio rota del abuelo.” — I composed grandad's broken radio.
“Compuso un poema para su madre.” — He/she composed a poem for his mother.
Common mistakes with componer in the preterite
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: “Ellos compuso una canción para el concurso.” Right: “Ellos compusieron una canción para el concurso.” Why: Ellos needs the ellos form compusieron. The singular compuso belongs with él, ella or a singular noun.
Wrong: “Ayer yo componí el equipo con los mejores.” Right: “Ayer yo compuse el equipo con los mejores.” Why: Componer has an irregular preterite: the correct first-person form is compuse, not the regular componí.
Wrong: “Nosotros compusiste la radio rota del abuelo.” Right: “Nosotros compusimos la radio rota del abuelo.” Why: Nosotros needs compusimos. The tú form compusiste belongs with tú.
Wrong: “Ellos compuse un poema para su madre.” Right: “Ellos compusieron un poema para su madre.” Why: The verb must agree with its subject. Ellos needs the ellos form compusieron, not the yo form compuse.
Quiz: componer in the preterite
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 ______ una canción para el concurso.” (A song for the competition.)
- (a) compuse
- (b) compusiste
- (c) compuso
Answer: compuse — The yo form of componer in the preterite is compuse. The other options are the forms for different persons, so they do not agree with the subject.
2. Complete the sentence: “¿Tú ______ el equipo con los mejores?” (The team with the best players.)
- (a) compuse
- (b) compuso
- (c) compusiste
Answer: compusiste — The tú form of componer in the preterite is compusiste. The other options are the forms for different persons, so they do not agree with the subject.
3. Complete the sentence: “Él ______ la radio rota del abuelo.” (Grandad's broken radio.)
- (a) compusiste
- (b) compuso
- (c) compuse
Answer: compuso — The él/ella/Ud. form of componer in the preterite is compuso. The other options are the forms for different persons, so they do not agree with the subject.
4. Complete the sentence: “Nosotros ______ un poema para su madre.” (A poem for his mother.)
- (a) compusimos
- (b) compuse
- (c) compusiste
Answer: compusimos — The nosotros/as form of componer in the preterite is compusimos. The other options are the forms for different persons, so they do not agree with the subject.
5. What is the vosotros/as form of componer in the preterite?
- (a) compuse
- (b) compusiste
- (c) compusisteis
Answer: compusisteis — From the table above: vosotros/as takes compusisteis. Say it with the example sentence “Vosotros compusisteis una canción para el concurso.” to fix it in your memory.
6. Complete the sentence: “Ellos ______ el equipo con los mejores.” (The team with the best players.)
- (a) compusiste
- (b) compusieron
- (c) compuse
Answer: compusieron — The ellos/ellas/Uds. form of componer in the preterite is compusieron. The other options are the forms for different persons, so they do not agree with the subject.
7. Which is the correct yo form of componer in the preterite?
- (a) compuse
- (b) compusiste
- (c) compuso
Answer: compuse — The yo form is compuse. The other two options are the forms for other persons.
8. Which sentence describes one finished action in the past?
- (a) Yo componía una canción para el concurso cada día.
- (b) Mañana, yo compondré una canción para el concurso.
- (c) Ayer, yo compuse una canción para el concurso.
Answer: Ayer, yo compuse una canción para el concurso. — “Ayer, yo compuse una canción para el concurso.” reports a single completed event, so it takes the preterite. The second option describes background or a past habit, and the third looks to the future.
Frequently asked questions
Is componer regular in the preterite?
No. Componer has an irregular preterite: compuse, compusiste, compuso, compusimos, compusisteis, compusieron. Learn these forms as a set rather than deriving them from the infinitive.
What is the past participle of componer?
The past participle is compuesto: 'He compuesto' means 'I have composed'. It is used with haber in every perfect tense. The gerund is componiendo.
When do I use the preterite instead of the imperfect for componer?
Use the preterite for one finished action, as in Ayer, yo compuse una canción para el concurso. Use the imperfect for a repeated habit or background, as in Yo componía una canción para el concurso cada día. The time words around the verb usually tell you which one fits.
How do I remember the preterite forms of componer?
Say the six forms out loud in order, three times, with a real sentence for each one: yo compuse, tú compusiste, él/ella/Ud. compuso, nosotros/as compusimos, vosotros/as compusisteis, ellos/ellas/Uds. compusieron. Then write three of your own sentences with componer in the preterite, using the examples on this page as models.
Related pages
- Full conjugation of componer — every tense of componer in one place.
- Componer examples and quiz — more sentences with componer and a ten-question quiz.
- Spanish preterite guide — how the preterite works for all Spanish verbs.
- Spanish verbs — the hub for every Spanish verb on VerbFlow.
- Preterite conjugator — conjugate any verb in the preterite instantly.
- Verb quiz — test yourself on componer and other verbs.