Lesson 7a: Variations
| Keyword | Root | Plural | Past | LY | ING | R |
| pet | pet | pets | petted | petting | ||
| set | set | sets | setting | setter | ||
| side | side | sides | sided | siding | ||
| tide | tide | tides | ||||
| pat | pat | pats | patted | patting | patter | |
| sat | sit | sits | sat | sitting | sitter | |
| tat | tat | tats | ||||
| peat | peat | |||||
| seat | seat | seats | seated | seating | ||
| seed | seed | seeds | seeded | seeding | seeder | |
| pit | pit | pits | pitted | pitting | pitter | |
| sit | sit | sits | sat | sitting | sitter |