YOU SAID:

there is a blue cow floating in the sea

INTO JAPANESE

海に浮かぶ青い牛がいる

BACK INTO ENGLISH

There's a blue cow floating in the sea.

INTO JAPANESE

青い牛が海に浮かんでいます。

BACK INTO ENGLISH

A blue cow is floating in the sea.

INTO JAPANESE

青い牛が海に浮いている。

BACK INTO ENGLISH

A blue cow is floating in the sea.