I don't think you have known many about our home life这句话有没有错?

I don't think you have known many about our home life这句话有没有错?
I don't think you have known many about our home life
这句话有没有错?

I don't think you have known many about our home life这句话有没有错?
I don't think you have known much about our home life.

known后面用much个人觉得