1. Preterit of –ar verbs
Use the preterit tense to talk about what
happened or what someone did at a specific
point in time. To form the preterit of –ar verbs, like
comprar, add these endings to the verb’s stem.

2. Yo compré

3. tú compraste

4. El/ella/usted
compró

5. Nosotros (as)
compramos

6. Vosotros (as)
comprasteis

7. Vosotros (as)
comprasteis

8. ellos
ellas compraron
ustedes

9. yo compré nosotros(as) compramos
tú compraste vosotros(as) comprasteis
Ud. Uds.
él compró ellos compraron
ella ellas
Ej) Yo compré un DVD ayer. Ej) Ella compró su boleto.
I bought a DVD yesterday She bought her ticket.

10. ** Note: The NOSOTROS form of –ar verbs look
exactly like the PRESENT tense form. You will have to
use CONTEXT clues to decide whether the speaker is
talking about the present or past.
Ej) Isa y yo gastamos mucho ayer. Casi nunca gastamos
tanto.
Isa and I spent a lot of money yesterday.
We hardly ever spend so much.

11. **Remember: If the verb is REFLEXIVE you need
to use a reflexive pronoun!
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Levantarse = to get up (got up)
me levanté nos levantamos
te levantaste os levantasteis
se levantó se levantaron