YOU SAID:
I am going to get some coffee after this class.
INTO JAPANESE
この授業の後、コーヒーを飲むつもりです。
BACK INTO ENGLISH
I'm going to have coffee after this class.
INTO JAPANESE
この授業が終わったらコーヒーを飲みます。
BACK INTO ENGLISH
I will drink coffee after this class.
INTO JAPANESE
この授業が終わったらコーヒーを飲みます。
BACK INTO ENGLISH
I will drink coffee after this class.
You've done this before, haven't you.