Irregular AR Verbs - O-> UE

Spanish: KS3, topic 16.1.3

Stem Changing AR Verbs (O → UE)

In Spanish in the present tense some AR verbs change when conjugated. The 'o' in the infinitive becomes 'ue'. This does NOT happen in the 'vosotros' and 'nosotros' forms. Derivatives of these verbs follow the same pattern.

Stem changes O → UE

Stem changes O → UE

  • 'Soñar' (to dream) becomes 'sueño' (I dream).
  • 'Encontrar' (to find) becomes 'encuentro' (I find).
Soñar - to dream

Soñar - to dream

  • Sueño - I dream.
  • Sueñas - you dream.
  • Sueña - He/she dreams.
  • Soñamos - we dream.
  • Soñáis - you dream.
  • Sueñan - they dream.
Aprobar - to approve

Aprobar - to approve

  • Apruebo - I approve.
  • Apruebas - you approve.
  • Aprueba - he/she approves.
  • Aprobamos - we approve.
  • Aprobáis - you approve.
  • Aprueban - they approve.
Costar - to be difficult, cost

Costar - to be difficult, cost

  • Cuesto - I am difficult.
  • Cuestas - you are difficult.
  • Cuesta - he/she is difficult.
  • Costamos - we are difficult.
  • Costáis - you are difficult.
  • Cuestan - they are difficult.
Mostrar - to show

Mostrar - to show

  • Muestro - I show.
  • Muestras - you show.
  • Muestra - he/she shows.
  • Mostramos - we show.
  • Mostráis - you show.
  • Muestran - they show.
Verbs that follow this pattern:

Verbs that follow this pattern:

  • Volar - to fly.
  • Recordar - to remember.
  • Colgar - to put (photos on social media)
  • Almorzar - to have lunch.
  • Encontrar - to find.
  • Probar - to try/taste.
  • Acordar - to agree on.
  • Contar - to count/tell.

Test yourself on Irregular AR Verbs - O-> UE

  • Encontrar - to Find

  • How do you say 'they try'?

  • Which of the following is the correct structure of the verb "mostrar"?

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