YOU SAID:

when is the world coming to an end?

INTO JAPANESE

世界が終わりに来ているとき

BACK INTO ENGLISH

When coming to the end of world

INTO JAPANESE

世界の終わりに来るとき

BACK INTO ENGLISH

When it comes to the end of the world

INTO JAPANESE

それは世界の終わりに来るとき

BACK INTO ENGLISH

When it comes to the end of the world