YOU SAID:

im supposed to be doing my late work

INTO JAPANESE

私は私の遅い仕事をしているはずです

BACK INTO ENGLISH

I should be doing my slow work

INTO JAPANESE

ゆっくりした仕事をしなければならない

BACK INTO ENGLISH

I have to work slowly

INTO JAPANESE

私はゆっくり働かなければなりません

BACK INTO ENGLISH

I have to work slowly