YOU SAID:
I had been having a chonky beer
INTO JAPANESE
濃いビールを飲んでいました
BACK INTO ENGLISH
i was drinking dark beer
INTO JAPANESE
黒ビールを飲んでいました
BACK INTO ENGLISH
drank dark beer
INTO JAPANESE
黒ビールを飲みました
BACK INTO ENGLISH
drank dark beer
That didn't even make that much sense in English.