YOU SAID:

Where had he seen that car before?

INTO JAPANESE

彼はその車をどこで見たことがありますか？

BACK INTO ENGLISH

Where has he seen the car?

INTO JAPANESE

彼はどこで車を見ましたか？

BACK INTO ENGLISH

Where did he see the car?

INTO JAPANESE

彼はどこで車を見ましたか？

BACK INTO ENGLISH

Where did he see the car?