Your sentence
en+bus
Words in this sentence
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