How can you find the present stem of a verb?
Rule 1: To find the present stem of a verb, take off -re from the present active infinitive. This will be the second principle part of the verb given in a dictionary. Taking off the -re from amāre gives you amā-. Now you have the present stem, you can use it!
What is the meaning of present stem?
The Present Stem is formed from the Root in all regular verbs in one of the following ways. a. In the 1st, 2nd, and 4th conjugations, by adding a long vowel (ā-, ē-, ī-) to the root, whose vowel is sometimes changed. vocā-re (VOC)