YOU SAID:

My brother can be very annoying sometimes

INTO JAPANESE

私の兄は時々 非常に迷惑することができます。

BACK INTO ENGLISH

My brother can sometimes be very annoying.

INTO JAPANESE

私の兄が非常に迷惑な場合があります。

BACK INTO ENGLISH

My brother is very annoying.

INTO JAPANESE

私の弟は非常に迷惑です。

BACK INTO ENGLISH

My brother is very annoying.