YOU SAID:

I should be doing my work

INTO JAPANESE

私の仕事をするべき

BACK INTO ENGLISH

To do my job

INTO JAPANESE

私の仕事をする

BACK INTO ENGLISH

I do my work

INTO JAPANESE

得意なんだ

BACK INTO ENGLISH

I do my best.

INTO JAPANESE

得意なんだ

BACK INTO ENGLISH

I do my best.