French conjugation of the present infinitive involves using the various conjugated verb endings to indicate the speaker’s point of view in the present tense. Depending on the subject, the endings are either er, -ir, -re, or -oir. For the subject pronouns, each has its own specific conjugation:

• Je (I) – ai (for -er verbs), is (for -ir verbs), ands (for -re verbs); and ois (for -oir verbs) • Tu (you, singular familiar) – as (for -er verbs), is (for -ir verbs), ands (for -re verbs); and ois (for -oir verbs) • Il, elle, on (he, she, one) – e (for -er verbs), is (for -ir verbs), andt (for -re verbs); and oit (for -oir verbs) • Nous (we) – ons (for -er verbs), issons (for -ir verbs), andons (for -re verbs); and oyons (for -oir verbs) • Vous (you, singular familiar, or you, plural) – ez (for -er verbs), issez (for -ir verbs), andez (for -re verbs); and oyez (for -oir verbs) • Ils, elles (they) – ent (for -er verbs), issent (for -ir verbs), endent (for -re verbs); and oient (for -oir verbs).

In addition, pronoun placement can be modified in some cases when the sentence structure changes. For example, if the verb comes before the pronoun, then the conjugated verb ending must include an E after the subject’s ending. Additionally, specific verbs may have an ‘e’ added to the end of their infinitive form, which must be taken into account when conjugating.