CHAPTER 7 ... HOW TO FIND THE PERFECT STEM
1. We recall from an earlier chapter that the 3rd p-part ends in ī and is translated as “I ~ed.”
2. The perfect stem is a modified version of the present stem. There are several ways to modify the present stem in order to form the perfect stem.
3. The best procedure is to inspect the 3rd p-part and remove the ī.
Ex. The principal parts of aedificō are aedificō, aedificāre, aedificāvī, aedificātus. The third principal part is aedificāvī. If we remove the ī, we obtain the perfect stem: aedificāv.
Exercise 1
Identify the perfect stem of each of the following verbs.
1. abdō, abdere, abdidī, abditus, hide (something)
2. abdūcō, abdūcere, abdūxī, abductus, take away
3. abeō, abīre, abiī, abitūrus, go away
4. abiciō, abicere, abiēcī, abiectus, throw away
5. abripiō, abripere, abripuī, abreptus, carry off
6. abscīdō, abcīdere, abcīdī, abcīsus, cut off
7. abscindō, abscindere, abscidī, abscissus, tear off
8. absum, abesse, āfuī, āfutūrus, be away
9. absūmō, absūmere, absūmpsī, absūmptus, destroy
10. accendō, accendere, accendī, accēnsus, light (a fire, e.g.)
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