YOU SAID:
the mouse is catching a flight to Amsterdam
INTO JAPANESE
マウスがアムステルダム行きの飛行機に乗っている
BACK INTO ENGLISH
Mouse is on a plane to Amsterdam
INTO JAPANESE
マウスはアムステルダム行きの飛行機に乗っています
BACK INTO ENGLISH
Mouse is on a plane to Amsterdam
You've done this before, haven't you.