YOU SAID:

I have to stay at work for a very long time. It gets really boring really fast.

INTO JAPANESE

私は非常に長い間仕事を続けなければなりません。本当に速く退屈になります。

BACK INTO ENGLISH

I have to work for a very long time. It gets boring really fast.

INTO JAPANESE

私は非常に長い間働かなければなりません。それは本当に速く退屈になります。

BACK INTO ENGLISH

I have to work for a very long time. It gets boring really fast.