There are no eight-letter words in the English language that end in vase.
ExpressoFalsettoFandango.
One example of an 8-letter word ending with "ing" is "starting." It refers to the act of beginning something or initiating a process.
Hanukkah
Question.
astonish
linguini
apparentaffluentrepresent
Copious
Olympiad
avoidingbreakingcrawlingdrinkingenduringfloatingguessinghumoringinvitinglisteningmountingnoticingorderingpressingprintingquittingroastingstealingtreadingunendingvouchingwateringyielding
yourself yourself
credenza