It seems to me that written it should be "punched", but it is hard to pronounce that way,
at least if you say it fast. If you want the "ed" to sound, you have to really emphasize it.
(Say it fast 10 times, and see what it sounds like.)
On the other hand, what do you call one that hasn't yet been punched?
I don't think I ever heard "punchable card".
Then again, in those days when you said "card" everyone knew what kind of
card you meant.
On Wednesday, January 29, 2020 at 9:44:19 AM UTC-8 Al Kossow wrote: