帮忙看看有没语法错误

i know my english is poor, so i want you to help me to impove my english.

把逗号去掉，第二个SO改THAT，
I know that my English is so poor that I want you to help me improve my English

典型的中国式英语

I know that my English is so poor that I want you to help me to improve my English.

这里要用so.. that句型

I know my English is poor,so I hope you can help me improve my English.改成这样会不会好点?