YOU SAID:

On sundays i usualy go out wearing a bikini

INTO JAPANESE

日曜日はいつもビキニを着て外出します

BACK INTO ENGLISH

I always go out in a bikini on Sundays

INTO JAPANESE

私は日曜日にはいつもビキニで外出します

BACK INTO ENGLISH

I always go out in a bikini on Sundays