A simple worksheet for practicing the imperfect and the preterite tenses! This "cheat sheet" includes a page that lists the most common phrases that trigger the use of either tense. Then, the worksheet gives 12 sentences for which students must fill in the blank with a preterite or an imperfect tense conjugation.
Note: all verbs are regular with the exception of SER. Reflexives appear in a couple of examples as well.
Thanks for looking!