YOU SAID:

the car that i hit yesterday was my car

INTO JAPANESE

私が昨日ぶつかった車は私の車だった

BACK INTO ENGLISH

The car I hit yesterday was my.

INTO JAPANESE

昨日は僕の誕生日だった。

BACK INTO ENGLISH

Yesterday was my birthday. [M]

INTO JAPANESE

昨日は僕の誕生日だった。

BACK INTO ENGLISH

Yesterday was my birthday. [M]