YOU SAID:
I am cooking a chicken for supper
INTO JAPANESE
私は夕食のために鶏肉を調理しています
BACK INTO ENGLISH
I'm cooking chicken for dinner
INTO JAPANESE
私は夕食に鶏肉を作っています
BACK INTO ENGLISH
I'm making chicken for dinner
INTO JAPANESE
夕食に鶏肉を作っています
BACK INTO ENGLISH
I'm making chicken for dinner
You've done this before, haven't you.