Regular -er, -re, and -ir Verbs in the Imperfect

Regular Catalan verbs outside the first conjugation share one remarkably uniform imperfect pattern. Whether the infinitive ends in -er, -re, or -ir, the regular endings are -ia, -ies, -ia, -íem, -íeu, -ien. Thus témer gives temia, perdre gives perdia, and dormir gives dormia.

The morphology is simpler than the English translations. Depending on context, dormia can mean “slept,” “used to sleep,” or “was sleeping.” The imperfect's real contribution is an inside view of a past situation: it does not present the beginning or endpoint as a completed narrative step.

One ending series across three conjugations

Remove the infinitive ending and add the same six endings. If the infinitive has an accent only because the infinitive itself is stressed there, remove it when stress shifts to the imperfect ending: témer becomes temia and temíem, not témia or témíem. The table includes two second-conjugation shapes and two -ir types to show the uniformity.

The present tense may hide this regularity. Servir is usually incoative in the present—Central serveixo, Valencian servisc—but the increment disappears in the imperfect: servia, not serveixia or serviscia. Many verbs that look complicated elsewhere are therefore easy in this tense.

Stress and written accents

The i of the ending is stressed in every form: per-DI-a, per-DI-es, per-DI-a, per-DÍ-em, per-DÍ-eu, per-DI-en. First- and second-person plural carry an acute accent: perdíem, perdíeu. The other forms need no written accent under the general spelling rules.

As with -ar verbs, first- and third-person singular have the same shape: jo perdia, ella perdia. The finite ending still marks tense, while context and any overt subject identify the participant.

Hiatus after a vowel stem: when the diaeresis appears

Verbs such as produir, conduir, traduir, and agrair bring the imperfect i directly after another vowel. Catalan writes a diaeresis on ï in the forms without a stress accent to show that the vowels belong to separate syllables rather than a diphthong.

The alternation produïa but produíem follows a general hierarchy: when a vowel already needs an acute accent for stress, that accent also signals the hiatus, so a diaeresis is not added. There is no logical shortcut beyond learning what the two marks do, but the six-form pattern is completely regular.

See The Diaeresis for the broader system, including verbal exceptions outside the imperfect.

Descriptions, states, and repeated actions

These forms have the same aspectual uses as the -ava imperfect. They can describe an ongoing state, establish a repeated routine, or provide simultaneous background.

The verb venir has an irregular present but the transparent imperfect venia series; many high-frequency verbs behave regularly in the imperfect even if they are irregular elsewhere. A small set—most importantly ser (era) and forms such as feia, deia, and veia—needs separate treatment on Irregular Imperfects.

Background versus a completed event

The imperfect places the listener inside the situation. The periphrastic past presents an event from the outside as a bounded whole. Both can occur naturally in one sentence.

In dormíem quan..., no boundary of the sleeping is asserted before the alarm; it is the background in progress. In vaig dormir vuit hores, the duration packages the sleep as one completed interval. This is why English “slept” can correspond to either tense.

The simple imperfect versus the progressive

English “was/were + -ing” very often maps to the simple Catalan imperfect. Llegia quan vas trucar is the neutral way to say “I was reading when you called.” Estava llegint is also possible, but explicitly foregrounds the activity's unfolding phase.

This miniature dialogue mixes regular dormíeu and llegíem with irregular feien. The simple imperfect is natural throughout because the speakers are reconstructing the background at one past moment. The progressive would be possible only with a deliberate closer focus.

Weak pronouns, negation, and mood

Weak pronouns precede an ordinary finite imperfect: el perdia, hi dormíem, en produïen. Negation comes first: no l'entenia, no hi dormíem, no en produïen prou.

The forms on this page are indicative and describe situations the speaker presents as part of the past account. Nonasserted or desired situations may require the imperfect subjunctive: La metgessa volia que dormissis més (“The doctor wanted you to sleep more”), not indicative dormies. The governing meaning, not the English past form by itself, selects mood.

Regional and register notes

The written -ia series is part of the common standard across Central, Valencian, Balearic, Northwestern, Northern, and Alguerese Catalan. Accent and vowel realization vary, but neutral writing retains perdia, perdíem, and the corresponding forms.

(regional: Northern Catalan) (informal) Local first-person singular forms in -i occur, including perdii, patii, and moriï beside general perdia, patia, and moria. The general -a forms are appropriate in formal shared usage. Other regions have lexical and phonetic differences, but no learner needs a separate regular written paradigm for each one.

Common Mistakes

1. Extending the -ava ending beyond -ar verbs.

2. Omitting the plural accents.

3. Missing the diaeresis after a vowel stem.

4. Building a hybrid of the periphrastic past and imperfect.

5. Copying the English progressive for a routine.

Key Takeaways

For regular -er, -re, and -ir verbs, use one series: -ia, -ies, -ia, -íem, -íeu, -ien. Stress falls on i, with acute accents in the two plural forms. When a vowel stem meets the ending, distinguish produïa/produïen from accented produíem/produíeu. Use the imperfect for a past situation viewed from within, not merely because an English translation contains a particular past form.