For the future tense:
* Sera: This is the most common way to say "will be" in the third person singular. It's used for subjects like "he," "she," "it," and "one."
* Example: "Il sera là demain." (He will be there tomorrow.)
* Serons: This is the first person plural form, used for "we."
* Example: "Nous serons à l'heure." (We will be on time.)
* Serez: This is the second person plural form, used for "you" (plural or formal singular).
* Example: "Vous serez contents." (You will be happy.)
* Seront: This is the third person plural form, used for "they."
* Example: "Ils seront ici bientôt." (They will be here soon.)
For the future proche (near future):
* Va être: This is used for the near future, implying that something is going to happen very soon.
* Example: "Elle va être là dans quelques minutes." (She will be here in a few minutes.)
For the conditional tense:
* Serait: This is used to express a hypothetical or conditional "will be."
* Example: "Il serait content de te voir." (He would be happy to see you.)
For the subjunctive mood:
* Soit: This is used in specific grammatical constructions, such as after verbs like "il faut" (it is necessary) or "il est possible" (it is possible).
* Example: "Il faut qu'il soit là." (It is necessary that he be there.)
Remember to conjugate the verb "être" (to be) according to the subject and the tense you are using.