YOU SAID:

the yellow fish swam up the river until the fish got tired

INTO JAPANESE

黄色い魚は魚が疲れるまで川を泳いでいました

BACK INTO ENGLISH

The yellow fish was swimming in the river until the fish got tired

INTO JAPANESE

黄色い魚は疲れるまで川を泳いでいました

BACK INTO ENGLISH

The yellow fish was swimming in the river until tired

INTO JAPANESE

黄色い魚は疲れるまで川を泳いでいました

BACK INTO ENGLISH

The yellow fish was swimming in the river until tired