你奈何不了他----翻译成英语

你奈何不了他.
you can do nothing with him!

楼上的几位回答都挺好的。
You can do nothing with/to him.
You can't do anything with/to him.
这些都可以的。但是You have nothing to do with him. 这句不行。
have nothing to do with sth/sb 是指与某事或者某人没有任何关系。
比如说：
A: Who broke the plate?
B: It has nothing to do with me!
谁把盘子打碎了？
跟我可没一点关系啊！

You cann't do anything about him.

You can do nothing with him.

He's not in check by you.