some other 后面应该加名词单数还是复数?

都可以的,看具体情况而定.如：
He bestirred himself about some other details and Carrie rocked on.
他又提出了一些别的细节问题,但是嘉莉继续在摇椅里摇着.
I'd better leave you attending to your business.We can have a chat some other time.
你忙正经事吧,我们改天再拉扯.
来自《现代汉英综合大词典》