YOU SAID:

“How many times do we have to teach you this lesson, old man!”

INTO JAPANESE

「このレッスンを何回教えなければならないのですか、老人！」

BACK INTO ENGLISH

“How many times do you have to teach this lesson?

INTO JAPANESE

「このレッスンを何回教える必要がありますか？

BACK INTO ENGLISH

“How many times do I need to teach this lesson?

INTO JAPANESE

「このレッスンを何回教える必要がありますか？

BACK INTO ENGLISH

“How many times do I need to teach this lesson?