Present: Irregular 'AR' Verbs (1/3)
Spanish: Cambridge International GCSE, topic 8.1.4
Stem Changing AR Verbs (E → IE)
When conjugating some AR verbs in the present tense, the 'e' in the infinitive becomes 'ie'. This does NOT happen in the 'nosotros' and 'vosotros' forms.

Cerrar - to close
- Cierro - I close.
- Cierras - you close.
- Cierra - he/she closes / you close (formal).
- Cerramos - we close.
- Cerráis - you close (plural).
- Cierran - they close / you close (formal plural).

Comenzar - to start
- Comienzo - I start.
- Comienzas - you start
- Comienza - he/she starts / you start (formal).
- Comenzamos - we start.
- Comenzáis - you start (plural).
- Comienzan - they start / you start (formal plural).

Empezar - to begin
- Empiezo - I begin.
- Empiezas - you begin.
- Empieza - he/she begins / you begin (formal).
- Empezamos - we begin.
- Empezáis - you begin (plural).
- Empiezan - they begin / you begin (formal plural).

Pensar - to think
- Pienso - I think.
- Piensas - you think.
- Piensa - he/she thinks / you think (formal).
- Pensamos - we think.
- Pensáis - you think (plural).
- Piensan - they think / you think (formal plural).

Nevar - to snow
- Nieva - It snows.
- This verb is only used in the 3rd person singular form.
- Hiela - It freezes.
- This verb is only used in the 3rd person singular form.

Other verbs that follow this pattern
- Merendar - to have an afternoon snack
- Recomendar - to recommend.
- Sentarse - to sit.
- Negar - to deny.
Test yourself on Present: Irregular 'AR' Verbs (1/3)
What is the correct way to say 'we think'?