YOU SAID:
I am gonna go out to fish!
INTO JAPANESE
魚に出かけます!
BACK INTO ENGLISH
Go out to the fish!
INTO JAPANESE
魚に出かけよう!
BACK INTO ENGLISH
Let's go out to the fish!
INTO JAPANESE
魚に出かけよう!
BACK INTO ENGLISH
Let's go out to the fish!
That didn't even make that much sense in English.