求英语高手帮我检查下这两个句子的语法是否有错误么?

求英语高手帮我检查下这两个句子的语法是否有错误么?
求英语高手帮我检查下这两个句子的语法是否有错误么?我总感觉别扭,如果有不合适的地方,应该如何改?
1,People always blame his failure on someone else rather than try to analyse the cause of mistake.
2,Whether we will benefit from them depend more on how to use it than on whether it has many advantages or not.
为什么是 depending?

楼上太不负责任了.
People always blame their failures on someone else rather than try to analyse the cause of mistakes.
Whether we can benefit from them depends more on how to use them than on whether they have many advantages or not.