每种语言都有它存在的必要 英语怎么说？

Question

每种语言都有它存在的必要，请翻译成英文，意译。

Answer 1

Every language has its own necessity to exist.

用to exist（动词形式），较名词existence简短有利些。

Answer 2

Each language all has the reason which it exists

Answer 3

Every language's existence is of essential meaning.

Answer 4

Each language has its presence necessary

Answer 5

Every language has its own necessity of existence.