componer Imperfect Subjunctive Conjugation
componer — to compose
The imperfect subjunctive of componer uses the irregular stem 'compusie-': compusiera, compusieras, compusiera.
componer Imperfect Subjunctive Forms
When to Use the Imperfect Subjunctive
Use this for 'if' clauses (hypotheticals) or when the main verb is in the past and requires the subjunctive.
Notes on componer in the Imperfect Subjunctive
This tense is derived from the third-person plural preterite (compusieron). Drop the '-ron' and add the endings.
Example Sentences
Si yo compusiera una ópera, sería famosa.
If I composed an opera, it would be famous.
yo
Me gustaría que tú compusieras el reloj.
I would like you to fix the clock.
tú
Si ellos compusieran sus diferencias, serían amigos.
If they settled (composed) their differences, they would be friends.
ellos/ellas/ustedes
Common Mistakes
Mistake: Si yo componiera.
Correct: Si yo compusiera.
Why: The stem must match the irregular preterite 'compus-'.
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Related Tenses
Present
yo: compongo
The present tense of componer is irregular in the first person (yo compongo), then follows the pattern of 'poner'.
Preterite
yo: compuse
The preterite of componer uses the irregular stem 'compus-' with specific endings: compuse, compusiste, compuso.
Imperfect
yo: componía
The imperfect of componer is regular: componía, componías, componía, componíamos, componíais, componían.
Future
yo: compondré
The future of componer uses the irregular stem 'compondr-': compondré, compondrás, compondrá.
Conditional
yo: compondría
The conditional of componer uses the irregular stem 'compondr-': compondría, compondrías, compondría.
Present Subjunctive
yo: componga
The present subjunctive of componer is based on the 'yo' form: componga, compongas, componga.
Affirmative Imperative
yo: compón
The imperative of componer has a short 'tú' form: compón.
Negative Imperative
yo: no compongas
The negative imperative of componer uses the present subjunctive: no compongas, no componga.