Gone is the past tense of go. After you go somewhere, you are gone. One of the chocolates in the box is gone.
Hopped is the past tense of hop.
Words that are a past tense of other words.
Abused, Allowed, Asked, Been, Began, Billed, bleached, Blew, Bothered, Bought, Brought, Caused, Ceased, Chose, Chucked, Confused, Crowned, Decayed, Deferred, Did, Dispersed, Displayed, Done, Drawn, Drove (Drive), Ducked, Ended, Enjoyed, Feared, Forced, Fought, Grew, Guessed, Happened, Heard, Jeered, Joined, Juiced, Kept, Knew, Leapt, Learnt, Limited, Mapped, Mused, Napped, Neared, Oozed, Packed, Quipped, Rained, Rapped, Remained, Risked, Sank, Sapped, Shaken, Shipped, Shone, Shook, Sinned, Skun, Slain, Slapped, Sourced, Spoke (Past), Spurned, Stopped, Strode, Supped, Swam, Swore, Swum, Taken, Taught, Tipped, Used, Veered, Was, Went, Would, Yearned, Zapped