| spoon | spoons | spooning | spoonful | teaspoon |
| school | schools | schooled | schooling | schoolbag |
| foot | football | footprint | footwear | footballer |
| cube | cubes | cubed | cubism | cuboid |
| prune | prunes | pruner | pruning | pruned |
| cute | acute | cutie | cuter | cutest |
| brew | brews | brewing | brewed | brewery |
| stew | stews | stewing | stewed | stewing |
| blue | blues | bluest | bluebird | blueberry |
