A dictionary of Confusable Phrases: More Than 10,000 Idioms and Collocations

trouble someone about something • trouble
 someone for something • trouble someone with
something
trouble someone about something —bother a person concern-
ing smth.: I am sorry to keep troubling you about that letter,
but until it is found I cannot answer it.
trouble someone for something —put a person to the incon-
venience of doing or giving smth.: Could I trouble you for
the newspaper, please?
trouble someone with something —worry smb. by bringing
the matter in question before the person: He is always trou-
bling me with some complaint or another.
trust in someone • trust to someone
trust in someone —have faith or confidence in a person: I
slowly found myself able again to hope and trust in the human
race.
trust to someone —act in dependence on a person; rely on
smb.: The people of England are discovering that it is no good
trusting to the old politicians.
Note: 
Neither expression is equivalent in meaning to the phrase
trust someone
—
1
. believe that a person is honest: They want
their neighborhood to be drug-free. They want to know and
trust their neighbors. 2. allow credit to a customer: I wonder
whether the newsagent will trust me; I need some cigarettes
and I have no money on me. 3. (followed by Infinitive) believe
that a person is able and willing to do smth.: She didn’t trust
anyone to look after her child properly. 4. (followed by Infini-
tive, sarcastic) believe that it is typical of a person to do the wrong
thing: Trust Julia to get the name wrong.
trust in something • trust to something
trust in something —have faith or confidence in smth.: We
felt that we could trust in his wide experience.
trust to something —act in dependence on smth.; rely on
smth.: I don’t know if it will work, but I’ll just trust to luck.