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 Infinitive, sarcastic) believe that it is typical of a person to do the wrong thing:
- Trust Julia to get the name wrong.