YOU SAID:

My favourite car is that I own

INTO JAPANESE

私の好きな車は私が所有

BACK INTO ENGLISH

My favorite cars I owned

INTO JAPANESE

私が所有する私のお気に入りの車

BACK INTO ENGLISH

I own my favorite car

INTO JAPANESE

私は私のお気に入りの車を所有します。

BACK INTO ENGLISH

I have my favorite car.

INTO JAPANESE

私の好きな車があります。

BACK INTO ENGLISH

My favorite car.

INTO JAPANESE

一番好きだ

BACK INTO ENGLISH

My favorite.

INTO JAPANESE

一番好きだ

BACK INTO ENGLISH

My favorite.