YOU SAID:
A dragon has never died from the bite of a snake.
INTO JAPANESE
ドラゴンはヘビに噛まれて死んだことはありません。
BACK INTO ENGLISH
The dragon has never been bitten by a snake and died.
INTO JAPANESE
ドラゴンがヘビに噛まれて死んだことは一度もありません。
BACK INTO ENGLISH
The dragon has never been bitten by a snake and died.
That didn't even make that much sense in English.