In German very frequently there are verbs that go together
with a preposition (mostly also in one word). We have
talked about this phenomenon already in Chapter
15. These verbs are quite difficult for two
a) Sometimes the meaning of the verb changes totally
with addition of a preposition. Sometimes the translation
of the verb with preposition is a word that has nothing
to do with the verb without the preposition.
b) Almost always the preposition means that the
prepositions changes position in the sentences.