YOU SAID:

didnt you know a cow crossed the road

INTO JAPANESE

牛が道路を横切ったのを知りませんでしたか

BACK INTO ENGLISH

Did you know that the cow crossed the road?

INTO JAPANESE

牛が道路を横切ったのを知っていましたか?

BACK INTO ENGLISH

Did you know that a cow crossed the road?

INTO JAPANESE

牛が道路を横切ったのをご存知ですか？

BACK INTO ENGLISH

Did you know that a cow crossed the road?