YOU SAID:

it is possible that someone is doing something nasty

INTO JAPANESE

誰かが厄介な何かをやってことが可能です。

BACK INTO ENGLISH

Doing something someone is annoying you, is possible.

INTO JAPANESE

何かを誰かが可能、迷惑です。

BACK INTO ENGLISH

Anything is possible, annoying someone.

INTO JAPANESE

何でも可能、誰かに迷惑です。

BACK INTO ENGLISH

Anything is possible, someone annoying.

INTO JAPANESE

何かは、誰かが迷惑。

BACK INTO ENGLISH

Something annoying someone.

INTO JAPANESE

何か誰かを苛立たせます。

BACK INTO ENGLISH

Something annoying someone.