YOU SAID:

want to grab a coffee after work

INTO JAPANESE

仕事の後にコーヒーを飲みたい

BACK INTO ENGLISH

I want to have a cup of coffee after work

INTO JAPANESE

仕事が終わったらコーヒーを飲みたい

BACK INTO ENGLISH

I want to have a coffee after work

INTO JAPANESE

仕事が終わってからコーヒーを飲みたい

BACK INTO ENGLISH

I want to have a coffee after work