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Regular ER Verbs

The imperfect subjunctive stem is based on the 'ellos/ellas' form of the preterite tense. There are two sets of endings that are both widely used. It does not matter which endings you use. Here is the example of 'conocer':

The stem

The stem

  • To form the stem you take the 'ellos/ellas' form of the preterite tense, ending in 'ieron'.
  • You take off the 'ron' and add the endings.
  • There are two sets of endings.
'Iera' endings

'Iera' endings

  • Conociera (I knew).
  • Conocieras (you knew).
  • Conociera (he/she knew).
  • Conociéramos (we knew).
  • Conocierais (you knew).
  • Conocieran (they knew).
'Iese' endings

'Iese' endings

  • Conociese (I knew).
  • Conocieses (you knew).
  • Conociese (he/she knew).
  • Conociésemos (we knew).
  • Conocieseis (you knew).
  • Conociesen (they knew).

Irregular ER Verbs

ER verbs that are irregular in the 'ellos/ellas' form of the preterite tense are irregular in the imperfect subjunctive. They have the same irregular stem as they have in the 'ellos/ellas' form of the preterite tense. Here are some examples:

'Caer'

'Caer'

  • Cayera/cayese (I fell).
  • Cayeras/cayeses (you fell).
  • Cayera/cayese (he/she fell).
  • Cayéramos/cayésemos (we fell).
  • Cayerais/cayeseis (you fell).
  • Cayeran/cayesen (they fell).
'Leer'

'Leer'

  • Leyera/leyese (I read).
  • Leyeras/leyeses (you read).
  • Leyera/leyese (he/she read).
  • Leyéramos/leyésemos (we read).
  • Leyerais/leyeseis (you read).
  • Leyeran/leyesen (they read).
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