

The rules for forming the current participle are illustrated in the following examples. Change e:i and o:u in the stem to form the current participle of -ir stem-changing verbs, then add -iendo to the verb’s stem. For current participles, what are the two types of stem changes?Īdd -iendo to the stem of a verb to form the present participle of regular -er and -ir verbs. In the imperfect tense, there are only three irregular verbs: ser, ir, and ver. In the imperfect tense, there isn’t a single ar verb that is irregular. Table 1 uses the – ar endings for each – ar verb in the entire language. Is it possible to see stem changes in an imperfection? In the imperfect, there are no spelling or stem changes. Because only o or e can be used as a stem changer, if the first vowel on the right is either o or e, it is a stem changing verb otherwise, it is not. Then one might wonder, “How do you tell if a verb has a stem change?” If the verb is a stem-changer, the next vowel to the left will change. What are the three types of stem-changing verbs in Spanish, one might wonder? E changes to IE, and E changes to Spanish has three different stem-changing patterns. Note that we must add a u to the stem for the first person singular (yo). Except for a minor change in the first person, jugar is regular in this conjugation, so all you have to do is take its stem (jug-) and add the preterite endings. Is it also possible that the stem of jugar changes in the preterite? We use the preterite to describe past actions that were completed. In the language, it is the only u>ue stem changer.

As you can see, the verb jugar does not have an o to change to ue. Because the verb jugar follows the same pattern, it is usually listed with the o>ue stem-changing verbs.
