YOU SAID:
my husband likes to go out swimming in the weekends
INTO JAPANESE
私の夫は週末に水泳に出かけるのが好きです
BACK INTO ENGLISH
My husband likes to go swimming on the weekends
INTO JAPANESE
私の夫は週末に泳ぎに行くのが好きです
BACK INTO ENGLISH
My husband likes to go swimming on the weekends
That didn't even make that much sense in English.