| lazy | lazed | lazing | lazier | laziest | lazybones |
| scary | scared | scaring | scarier | scariest | scarecrow |
| key | keys | keyring | donkey | monkey | keyhole |
| field | fields | fielder | fielding | fielders | fielding |
| delete | deletes | deleted | deleting | undeletable | deletion |
| severe | severest | severely | severity | persevere | perseverance |
| interfere | interferes | interfered | interfering | interference | interferences |
| receive | receives | received | receiving | unreceived | receivable |
