| Term | Definition |
| creo, creare, reavi, creatum | I create, to create, I created, created |
| exploro, explorare, exploravi, exploratum | I explore, to explore, I explored, explored |
| cogito, cogitare, cogitavi, cogitatum | I think, to think, I thought, thought |
| muto, mutare, mutavi, mutatum | I change, to change, I changed, changed |
| dubito, dubitare, dubitavi, dubitatum | I doubt, to doubt, I doubted, doubted |
| magnus, magna, magnum | large, great |
| parvus, parva, parvum | small |
| verus, vera, verum | true |
| falsus, falsa, falsum | false |
| dubius, dubia, dubium | doubtful |
| Cogito ergo sum | I think therefore I am Descartes |