Here's how to find it:
1. Identify the infinitive form of the verb: This is the base form of the verb, usually ending in "-er" (e.g., parler, manger, jouer).
2. Remove the "-er" ending: The remaining part is the stem.
For example:
* Infinitive: parler (to speak)
* Stem: parl-
* Infinitive: manger (to eat)
* Stem: mang-
* Infinitive: jouer (to play)
* Stem: jou-
Note: The stem is important for conjugating verbs in different tenses and moods.