When do you use de?
I am confused of why some situations require me to use "de" to say Lincoln Street: Calle de Lincoln, while other situations require me to not: camiseta de azul?
1 Answer
"De" can mean either "of" or "from." Besides that there are a lot of idiomatic uses of "de" which have no equivalent in English and must simply be learned.
Here is a link to "de" and other common prepositions. The discussion on "de" is a little limited, but valuable.