Measure, standard, value preposition
- He charges interests at percent. = measure
- Cloth is sold by yard. = value
- I'm taller than you by 2 inches
Preposition of agent
- This letter was written by me.
- These tools are made up of silver.
Concession, contrast preposition
- After every effort, one may fail.
- For one enemy, he has one hundred friends.
Origin or source, motive and interference preposition
- From a woman, we got a saviour.
- From what I know of, I hesitate to trust him.
- This is a present from your uncle.
