YOU SAID:
taco cat went to taco time
INTO JAPANESE
タコス猫はタコスタイムに行きました
BACK INTO ENGLISH
Taco cat went to taco time
INTO JAPANESE
タコス猫はタコスタイムに行ってきました
BACK INTO ENGLISH
Taco cat went to taco time
That didn't even make that much sense in English.