

Read the explanations carefully and then analyze the examples after each formula. The sentence will change meaning depending on the tense of the verbs joined by mientras. The conjunction mientras can be used to join two verbs in the imperfect, or it can be used in sentences where one verb is in the preterite and the other is in the imperfect. Notice that cuando does not have an accent mark because it is not being used as a question word. Two vocabulary words that are necessary to join two past tense verbs in the same sentence are mientras (while) and cuando (when). There are a few typical sentence‐structure formulas that are easy to learn. The preterite and imperfect tenses are often used together in the same sentence. Quiz: Command Forms with Reflexive Pronouns.Reflexive, Prepositional, and Demonstrative Pronouns.

Verbs That Change Meaning in the Preterite.Quiz: Verbs That Change Meaning in the Preterite.Quiz: Irregulars in the Preterite Tense.Quiz: Stem Changers in the Preterite Tense.Quiz: Different Yo Forms in the Preterite Tense.Different Yo Forms in the Preterite Tense.Quiz: Regular Verbs in the Preterite Tense.Quiz Indirect Objects and Indirect Object Pronouns.

