Your sentence
je+vous+en+prie
Words in this sentence
vous
the plural personal pronoun in the second person; you (all); you, to you (indirect object pronoun); plural or singular personal pronoun in the second person
Pronoun
en
in (used to indicate space, also see usage notes); to (indicates direction towards certain very large locations, see usage notes); by (used to indicate means); as; at (used to describe an ability); of, made of (used to describe composition); in (during the following time (used for months and years)); while; by, in (describing a way of getting something); in (used to describe color); …
Preposition