Conjugation is the creation of derived forms of a verb from one basic form. Conjugation may be affected by person, number, gender, tense, mood, voice, or some other language-specific factor or factors. When a verb is used to function as the action done by a subject, the verb must be conjugated in most languages.
|Form / Person||English||Latin||French|
|1st singular||I am||sum||je suis|
|2nd singular||you are||es||tu es|
|3rd singular||he, she, or it is||est||il/elle est|
|1st plural||we are||sumus||nous sommes|
|2nd plural||you are||estis||vous êtes|
|3rd plural||they are||sunt||ils/elles sont|
Note that the similarity between English is and Latin est is not a mere coincidence, but rather one of the consequences of them having a distant common ancestor (see Indo-European languages). French is a derivative of Latin, which explains the much greater similarity in the way they conjugate this verb.
In addition, there are 4 regular conjugations, and one sub-form:
Notice in all forms the endings are similar, 'o' or 'm' endings mean I. 's' means 'you' (in the pronouns suus means his, do not get confused) and the 't' endings mean he/she/it.
See also: Latin declension