YOU SAID:

dont you know that there is two people that went to the bottom of the ocean

INTO JAPANESE

あなたは、海底に行った2人がいることを知らない

BACK INTO ENGLISH

You don't know there are two people who went to the bottom of the ocean

INTO JAPANESE

海底に行った人が２人いることは知らないでしょう

BACK INTO ENGLISH

You don't know two people who went to the bottom of the ocean.

INTO JAPANESE

海底に行った２人を知らないのか？

BACK INTO ENGLISH

You don't know the two who went to the bottom of the ocean?

INTO JAPANESE

海底に行った２人を知らないのか？

BACK INTO ENGLISH

You don't know the two who went to the bottom of the ocean?