Lesson 13b: Variations
| Keyword | Root | Plural | Past | LY | ING | R |
| bird | bird | birds | ||||
| lord | lord | lords | ||||
| pork | pork | |||||
| born | born | |||||
| horn | horn | horns | ||||
| morn | morn | morning | ||||
| port | port | ports | ||||
| burl | burl | burls | burled | burling | ||
| purl | purl | |||||
| burn | burn | burns | burned | burning | burner | |
| hurt | hurt | hurts | hurting | |||
| bard | bard | bards |