YOU SAID:

I boarded the train to Union Station, before I purchased my tickets.

INTO JAPANESE

私はチケットを購入する前に、ユニオン駅行きの列車に乗りました。

BACK INTO ENGLISH

I boarded a train to Union Station before buying a ticket.

INTO JAPANESE

切符を買う前にユニオン駅行きの電車に乗った。

BACK INTO ENGLISH

I took the train to Union Station before I bought a ticket.

INTO JAPANESE

切符を買う前にユニオン駅まで電車に乗った。

BACK INTO ENGLISH

I took the train to Union Station before buying a ticket.

INTO JAPANESE

私はチケットを買う前にユニオン駅まで電車に乗った。

BACK INTO ENGLISH

I took the train to Union Station before buying a ticket.