Your sentence
S'il+pleut,+on+restera+à+la+maison
Words in this sentence
il
he (third-person singular masculine subject pronoun for human subject); it (third-person singular subject pronoun for grammatically masculine objects); Impersonal subject; it
Pronoun
rester
to stay; to remain, be left over; to stay, to remain (to continue to have a particular quality); to rest; to live
Verb
à
to (destination); at, in, on (said of a particular place); at (said of a particular time); to (until); on the, to (some directions); from (origin); of (belonging to); by; to (used to express something not completed); used to make compound nouns to state what something is used for; …
Preposition