YOU SAID:

I wish I could have gone, but alas that ship has sailed, that train has left the station

INTO JAPANESE

私は、私が行けたのに悲しいかなその船は出航して、電車は駅を出た

BACK INTO ENGLISH

I have gone I have sadly not that ship has sailed, leaving a train station

INTO JAPANESE

私は私が悲しいことにない、船が出航して、鉄道駅を出て行っています。

BACK INTO ENGLISH

I sadly did not, the ship sailed, the train station has gone out.

INTO JAPANESE

私は悲しいことに、船が航行していない、駅が出て行った。

BACK INTO ENGLISH

Sadly, the ship was not sailing, the station went out.

INTO JAPANESE

悲しいことに、船は航海していない、駅は出て行った。

BACK INTO ENGLISH

Sadly, the ship was not sailing, the station went out.