i can't decide which one to choose是否等同i can't decide to choo

意思一样.但是第二句语法是不对的.非正常语序.
宾语从句中,语序是：疑问词+主语+谓语+其他=疑问词+to+谓语原形.
不过要注意：这种等同的前提是主句主语需和从句主语一致.
例：I don't know where I can go.= I don't know where to go.
如果是同义句转换,I can't decide which one to choose.=I can't decide which one I can choose.