adverb 或 preposition 通常是不是用作修飾，於動詞的前或後？

例：up load
lock off the switch
cheated the university out of more than one million dollars
turn on the light
get on the bus
up, off, out, on, on, 字面上是可解釋到是修釋動詞的。
但：
give in
break down
give up
come across
in, down, up, across 加埋動詞有另外動詞意思，即 phrasal verb，對嗎？