Verbal phrase:
a) opened the door
b) trying several keys
c) door after trying
d)after trying
e)He opened the door
Use:
f) direct object
g)predicate noun
h)subject
i)object of the preposition

Verbal phrase a opened the door b trying several keys c door after trying dafter trying eHe opened the door Use f direct object gpredicate noun hsubject iobject class=