sois
be (present subjunctive — first and second person singular)
Il faut que tu sois là à l'heure.
You need to be there on time.
be (imperative — second-person singular; used to give commands or advice)
Sois poli avec les invités.
Be polite with the guests.
Notes
GENERAL INFO
Sois is a conjugated form of the verb "être" (to be). It primarily means "be" (as a command) or "am/are" (in certain subjunctive contexts).
USAGE
As an imperative, it expresses a command to a single person (tu): "Sois attentif !" (Be attentive!).
In the present subjunctive, it's used after expressions of necessity, doubt, or emotion: "Il faut que tu sois patient." (You must be patient.)
CONJUGATION
Sois is the 2nd person singular (tu) of the imperative mood for "être". It is also the 1st person singular (je) and 2nd person singular (tu) of the present subjunctive for "être".
