YOU SAID:

As the sun set, the birds begun to quieter down

INTO JAPANESE

日が沈むにつれて、鳥は静かにし始めた

BACK INTO ENGLISH

As the sun went down, the birds began to quiet down.

INTO JAPANESE

日が沈むにつれて、鳥たちは静かにし始めた。

BACK INTO ENGLISH

As the sun went down, the birds began to quiet down.