YOU SAID:
the train is about to leave the metro station
INTO JAPANESE
列車はまさに駅を出ようとしていた。
BACK INTO ENGLISH
The train was about to leave the station.
INTO JAPANESE
列車はまさに駅を出ようとしていた。
BACK INTO ENGLISH
The train was about to leave the station.
That didn't even make that much sense in English.