I want that give the most brilliant smiling for you.有没有语法错误?

I want that give the most brilliant smiling for you.有没有语法错误?
I want that give the most brilliant smiling for you.有没有语法错误?

I want that give the most brilliant smiling for you.有没有语法错误?
that去掉在want后加to,最好用to you

这个还真有。
应该说 I hope (that) it can bring you the most brilliant smile.