est-il

/ɛ.t‿il/être
1.
verbmasculineInd3rdPresSing3

is he

is it (referring to a masculine noun)

Est-il encore à la maison ?

Is he still at home?

2.
verbInd3rdPresSing3

is it (used in impersonal constructions)

Est-il possible de venir demain ?

Is it possible to come tomorrow?