YOU SAID:
My friend was playing minecraft for the last 24 hours
INTO JAPANESE
私の友達は過去 24 時間マインクラフトをプレイしていました
BACK INTO ENGLISH
My friend has been playing Minecraft for the last 24 hours
INTO JAPANESE
私の友人は過去 24 時間 Minecraft をプレイしています
BACK INTO ENGLISH
My friend has been playing Minecraft for the last 24 hours
You've done this before, haven't you.