Make a list of the most common Italian irregular verbs in your notebook or on flashcards to help you remember them. It’s important to learn and memorize irregular verbs in Italian because they are the most commonly used verbs in everyday conversation. The verbs to be, can, or may are common irregular verbs in English. The irregular verbs are those that do not follow the standard conjugation rules, such as the verbs ending in -are, -ere, or -ire. One of the most common difficulties for learners is learning and remembering irregular Italian verbs.