帮我用英语翻译以下汉语

i now tell you seirously she don't have cell phone.我郑重的告诉你,她没手机
if you are brother,"can you set yourself against me?"
如果你是兄弟,你能跟我作对吗?
最后一句,"你能跟我作对吗?"如果你是想说,你敢跟我作对吗如下
you dare to set yourself against me?

I can tell you seriously,she hasn't got the mobil phone?
If you think i'm your friend,don't against me any more.

I tell you seriously:she does not have a cellphone.
If you are my buddy~!Could you please be not against me?

I tell you solemnly: She has no cell phone. If you are my buddy, would you please fight against me?