Could someone me with this, i’m supposed to write each verb in the imperfect or the preterite

9. fuimos

10. Nos sentamos

11. hacía

12. pusimos

13. esperábamos

14. vimos

15. corrió

16. tenía

17. me levanté

18. corrí

19. dejó

20. salió

Explanation:

Both the preterite and imperfect tenses are forms of the past tense, but when telling a story, background information is given in the imperfect and sudden, one-time events are talked about with the preterite. Another quick example of these two tenses used in the same sentences is:

Mi mamá estaba hablando por teléfono cuando llegó la abuela.

Mi mom was talking on the phone when my grandma arrived.