| cēdō, move along | cēdere | cessī | cessus |
| claudō, shut | claudere | clausī | clausus |
Sometimes clūdō, clūdere, clūsī, clūsus. Compounds have ū for au throughout.
| dī-vidō, separate | dī-videre | dī-vīsī | dī-vīsus |
| fīgō, pin | fīgere | fīxī | fīxus, twice fīctus |
| fluō, flow | fluere | flūxī | fluxus adjective |
| laedō, hurt | laedere | laesī | laesus |
Compounds have ī for ae throughout: as, in-līdō, in-līdere, &c.
| lūdō, play | lūdere | lūsī | lūsus |
| mittō, send | mittere | mīsī | missus |
| mergō, dip, duck | mergere | mersī | mersus |
| plaudō, clap | plaudere | plausī | plausus |
Also ap-plaudō, ap-plaudere, &c. Other compounds have usually ō for au throughout: as, ex-plōdō, &c.; but ex-plaudō (Lucr.).
| premō, squeeze | premere | pressī | pressus |
Compounds have i for e in the present system: as, com-primō, &c.
| rādō, scrape | rādere | rāsī | rāsus |
| rōdō, gnaw | rōdere | rōsī | rōsus |
| spargō, scatter | spargere | sparsī | sparsus |
Compounds usually have e for a throughout: as, cōn-spergō, &c.