YOU SAID:

The sea is basically the sky of the ground.

INTO JAPANESE

海は基本的に地面の空です。

BACK INTO ENGLISH

Sea is basically an empty ground.

INTO JAPANESE

海は基本的に空き地であります。

BACK INTO ENGLISH

Sea is essentially vacant.

INTO JAPANESE

海は基本的に空いています。

BACK INTO ENGLISH

The sea is free basically.

INTO JAPANESE

海は基本的に無料です。

BACK INTO ENGLISH

The sea is basically free of charge.

INTO JAPANESE

海は基本的に無料です。

BACK INTO ENGLISH

The sea is basically free of charge.