请帮忙用英语翻译一句话

i know you would bring me a gift when i heard you're comming.
我是加拿大留学生
这个应该不会错的
不过建议不要这么说

I have known that you would bring me a gift when I knew you were going to China.

I`m certituded know that u`ll bring me gifts when I learned that u`re about to come to China.

When i konw that you coming to China sonn`i m sure that u will give me a gift`

I am sure that you will bring me gift when I kown you are coming to China.

When I knew you were going to China,I was sure you would bring me a gift.