prolongar Imperfect Conjugation
prolongar — to extend
The imperfect of prolongar is regular, using the -aba endings: prolongaba, prolongabas, etc.
prolongar Imperfect Forms
When to Use the Imperfect
Use this to describe ongoing or habitual extensions in the past, or to set the scene (e.g., 'They were extending the road...').
Notes on prolongar in the Imperfect
This verb is regular in the imperfect. It follows the standard -ar pattern without any spelling changes.
Example Sentences
Antes, nosotros prolongábamos las cenas hasta la madrugada.
Before, we used to prolong dinners until dawn.
nosotros
El director siempre prolongaba sus discursos.
The director always used to prolong his speeches.
él/ella/usted
Tú prolongabas la espera a propósito.
You were prolonging the wait on purpose.
tú
Common Mistakes
Mistake: Forgetting the accent in 'prolongábamos'.
Correct: prolongábamos
Why: The nosotros form of all -ar verbs in the imperfect must have an accent on the first 'a' of the ending.
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Related Tenses
Present
yo: prolongo
The present tense of prolongar is completely regular: prolongo, prolongas, prolonga, etc.
Preterite
yo: prolongué
The preterite of prolongar is regular except for the 'yo' form, which changes to 'prolongué'.
Future
yo: prolongaré
The future of prolongar is regular: just add the endings to the infinitive (prolongaré).
Conditional
yo: prolongaría
The conditional of prolongar is regular: add -ía endings to the full infinitive.
Present Subjunctive
yo: prolongue
The present subjunctive of prolongar requires a spelling change from 'g' to 'gu' to keep the sound consistent.
Imperfect Subjunctive
yo: prolongara
The imperfect subjunctive of prolongar is regular, following the 'ra' pattern: prolongara, prolongaras, etc.
Affirmative Imperative
yo: prolonga
The imperative of prolongar uses the 'gu' spelling change for all forms except 'tú' and 'vosotros'.
Negative Imperative
yo: no prolongues
The negative imperative of prolongar always uses the 'gu' spelling change (no prolongues).