可是他们没有想到，这也许起到了负面的作用的翻译：But they didn't expect, which may play a negative role 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

But they did not think that this may play a negative role

But they didn't expect, which may play a negative role

But they had not thought that, perhaps this played the negative role

But they did not expect that this may have played a negative role

But they didn't expect, which may play a negative role