This site is an introduction to verbs that change meaning according to which past tense is applied, preterite or imperfect. Examples in English and Spanish illustrate the change of meaning. A quiz at the end of the lesson tests the...

Great exercise for practicing the preterite and imperfect tenses. Provide the correct form of verb infinitives that complete the story of Goldilocks and the Three Bears. Immediate feedback corrects the answer. Correlates to another...

This site is an introductory lesson to the preterite and imperfect past tenses. The regular conjugations of each are presented, with brief general rules for their use. This is a great introduction without getting bogged down in all the...

A detailed look at the conditions of when to use the preterite versus the imperfect. Outstanding explanations, even though some may prove too detailed for many high school students. Excellent examples compare the use of the preterite and...