YOU SAID:

I went to the pool for my yearly swim

INTO JAPANESE

私は毎年泳ぐためにプールに行きました

BACK INTO ENGLISH

I went to the pool to swim every year

INTO JAPANESE

私は毎年プールに泳ぎに行きました

BACK INTO ENGLISH

I went swimming in the pool every year

INTO JAPANESE

私は毎年プールに泳ぎに行きました

BACK INTO ENGLISH

I went swimming in the pool every year