Vous

We address each other as "vous".

There are four types of changes in French present verb conjugations: the change in length, with singular forms usually being shorter than the plural forms, the change in letters, with the "je," "tu," "il/elle," and "ils/elles" forms being slightly different from the "nous" and "vous" forms, spelling changes, where the conjugation changes due to the nature of French verbs, and any other irregular change that doesn't fit in the first three categories.