9.1.7

Irregular ER Verbs - Vowel Changes

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Strong Preterite Root Vowel Changes to 'U'

Strong preterites are verbs that differ from general rules but still follow a pattern. These verbs change their root vowel to a 'u'.

Illustrative background for Poder - to be able to Illustrative background for Poder - to be able to  ?? "content

Poder - to be able to

  • Pude - I was able to.
  • Pudiste - you were able to.
  • Pudo - he/she was able to.
  • Pudimos - we were able to.
  • Pudisteis - you were able to.
  • Pudieron - they were able to.
Illustrative background for Poner - to putIllustrative background for Poner - to put ?? "content

Poner - to put

  • Puse - I put.
  • Pusiste - you put.
  • Puso - he/she put.
  • Pusimos - we put.
  • Pusisteis - you put.
  • Pusieron - they put.
    • For poner, the stem 'pon' becomes 'pus'.
Illustrative background for Saber - to knowIllustrative background for Saber - to know ?? "content

Saber - to know

  • Supe - I knew.
  • Supiste - you knew.
  • Supo - he/she knew.
  • Supimos - we knew.
  • Supisteis - you knew.
  • Supieron - they knew.
    • For saber, the stem 'sab' becomes 'sup'.

Strong Preterite Root Vowel Changes to 'I'

Some strong preterite verbs change their root vowel to an 'i'.

Illustrative background for Hacer - to doIllustrative background for Hacer - to do ?? "content

Hacer - to do

  • Hice - I did.
  • Hiciste - you did.
  • Hizo - he/she did.
  • Hicimos - we did.
  • Hicisteis - you did.
  • Hicieron - they did.
Illustrative background for Querer - to wantIllustrative background for Querer - to want ?? "content

Querer - to want

  • Quise - I wanted.
  • Quisiste - you wanted.
  • Quiso - he/she wanted.
  • Quisimos - we wanted.
  • Quisisteis - you wanted.
  • Quisieron - they wanted.

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