III. PERFECT IN -SĪ.
| augeō | augēre | auxī | auctus | increase |
| torqueō | torquēre | torsī | tortus | twist |
| indulgeō | indulgēre | indulsī | —— | indulge |
| lūceō | lūcēre | lūxī | —— | be light |
| lūgeō | lūgēre | lūxī | —— | mourn |
| jubeō | jubēre | jussī | jussus | order |
| per-mulceō | permulcēre | permulsī | permulsus | soothe |
| rīdeō | rīdēre | rīsī | rīsum (est) | laugh |
| suādeō | suādēre | suāsī | suāsum (est) | advise |
| abs-tergeō | abstergēre | abstersī | abstersus | wipe off |
| ārdeō | ārdēre | ārsī | ārsūrus | burn |
| haereō | haerēre | haesī | haesūrus | stick |
| maneō | manēre | mānsī | mānsūrus | stay |
| algeō | algēre | alsī | —— | be cold |
| fulgeō | fulgēre | fulsī | —— | gleam |
| urgeō | urgēre | ursī | —— | press |
IV. PERFECT IN -Ī WITH REDUPLICATION.
| mordeō | mordēre | momordī | morsus | bite |
| spondeō | spondēre | spopondī | spōnsus | promise |
| tondeō | tondēre | totondī | tōnsus | shear |
| pendeō | pendēre | pependī | —— | hang |
V. PERFECT IN -Ī WITH LENGTHENING OF STEM VOWEL.
| caveō | cavēre | cāvī | cautūrus | take care |
| faveō | favēre | fāvī | fautūrus | favor |
| foveō | fovēre | fōvī | fōtus | cherish |
| moveō | movēre | mōvī | mōtus | move |
| paveō | pavēre | pāvī | —— | fear |
| sedeō | sedēre | sēdī | sessūrus | sit |
| videō | vidēre | vīdī | vīsus | see |
| voveō | vovēre | vōvī | vōtus | vow |
VI. PERFECT IN -Ī WITHOUT EITHER REDUPLICATION OR LENGTHENING OF STEM VOWEL.
| ferveō | fervēre | (fervī, ferbuī) | —— | boil |
| prandeō | prandēre | prandī | prānsus ([§ 114], 2) | lunch |
| strīdeō | strīdēre | strīdī | —— | creak |
VII. DEPONENTS.
| liceor | licērī | licitus sum | bid |
| polliceor | pollicērī | pollicitus sum | promise |
| mereor | merērī | meritus sum | earn |
| misereor | miserērī | miseritus sum | pity |
| vereor | verērī | veritus sum | fear |
| fateor | fatērī | fassus sum | confess |
| cōnfiteor | cōnfitērī | cōnfessus sum | confess |
| reor | rērī | ratus sum | think |
| medeor | medērī | —— | heal |
| tueor | tuērī | —— | protect |