Preterite versus Imperfect Tense

What Verbs have steam changes and what verbs do not? (in preterite)

AR and ER Verbs do not have steam changes, BUT IR Verbs do (ONLY IN SIGN 3rd person and Pural 3rd ).

Irregular Verbs in the first person preterite? For verbs ending in Car,Gar, Zar

Car → qu, Gar → gu, Zar → c.

What are the ending for Ar Verbs?

Yo- é, Tú- aste, él,Ella,Usted - ó, Nosotros - amos, Vosotros - asteis, Ellos,Ellas, Ustedes - Aron.

What are the ending of Ir and er verbs

Yo- í, Tú- iste, él,Ella,Usted - ió, Nosotros - imos, Vosotros - isteis, Ellos,Ellas, Ustedes - ieron.

What are the preterite of IR (to go) and Ser (to be)

Yo- Fui, Tú- Fuiste, Usted/El/Ella - Fue, Nosotros - Fuimos, Nosotros -Fuimos, Vosotros - Fuisteis, Ustedes- Fueron

When to use the preterite tense of a word?

Completed actions (clear start and end point), One time events, Begining or end of a past action, Or a series of actions

The imperfect tense of regular verbs? (Ar Verbs)

Yo-aba, Tú-abas, El/Ella/Usted -aba, Nosotros-ábamos , Vosotros-abais, Ellos/Ellas/Ustedes-aban,

The imperfect tense of regular verbs? (ir/ er Verbs)

Yo-ía, Tú-ías, El/Ella/Usted -ía, Nosotros-íamos , Vosotros-íais, Ellos/Ellas/Ustedes-ían,

Do imperfecto tense have steam changes?

No

When to use impefect tense

Age, Time, Ongoing past actions, Habitual past actions, Description of states or characteristics

Imperfect tense of Hay

Había

Imperfect tense of Ir

Yo- iba, Tú-Ibas, Ella- Iba, Nosotros ibámos, Vosotros- Ibais, Ellas- iban

Imperfect tense of ser

Yo- era, Tú-eras, Ella- era, Nosotros éramos, Vosotros- erais, Ellas- eran

Imperfect tense of Ver

Yo- Veía, Tú-Veías, Ella- Veía, Nosotros Veíamos, Vosotros- Veias, Ellas- Veían