Zusammensetzungen mit some-
Some forma parte de muchos otros pronombres indefinidos
something algo
somebody alguien
someone alguien
somewhere en alguna parte
somehow de alguna manera
sometimes de vez en cuando
El uso de some siempre es el mismo, sea que some forme parte de una palabra compuesta o sea que se lo utiliza aisladamente.
Ejemplos
I have found something on the streets; I still don't know what it is.
Somebody had slept in my bed, said the little bear.
There is someone at the door, would you please open it.
She has gone somewhere, she did not say where.
Somehow, it is hard to admit when making mistakes.
Sometimes you have to do something that you don't want to do.