YOU SAID:

fish in the sea do indeed swim

INTO JAPANESE

海の魚は本当に泳いでいる

BACK INTO ENGLISH

Sea fish are really swimming

INTO JAPANESE

海の魚は本当に泳いでいます

BACK INTO ENGLISH

The fish in the ocean are really swimming.

INTO JAPANESE

海の魚は本当に泳いでいます。

BACK INTO ENGLISH

Sea fish are really swimming.

INTO JAPANESE

海の魚は本当に泳いでいます。

BACK INTO ENGLISH

Sea fish are really swimming.