In French, there are three main infinitive families: ‐er, ‐ir, and ‐re. Once you memorize the pattern of endings for the specific infinitive family, you can conjugate any regular verb within that family. Simply drop the infinitive ending and add the appropriate ending for each subject. Table 1 shows the conjugations for regular verbs in the present tense.
The verb rompre (to break) and other verbs that include rompre in their stems, such as corrompre (to corrupt) and interrompre (to interrupt), add t to the third person singular form: il rompt, il corrompt, il interrompt.