YOU SAID:

lions always need to eat

INTO JAPANESE

ライオンは常に食べる必要があります

BACK INTO ENGLISH

The lion must always eat

INTO JAPANESE

ライオンは常に食べなければならない

BACK INTO ENGLISH

A lion must always eat.

INTO JAPANESE

ライオンは常に食べなければなりません。

BACK INTO ENGLISH

A lion must always eat.