But there are irregular verbs! The big two you need to know are ‘to go’ - ‘ir’ and ‘to be’ - ‘ser’. Luckily, they’re both the same in the preterite. They become: ‘fui ...

So, in IKIMASU (to go), you change KI to KU, and get IKU. There are two irregular verbs that don’t fit the above patterns. They are KIMASU (to come), and SHIMASU (to do). KIMASU becomes KURU ...

A regular verb is one that conforms to the rules of grammar, whereas an irregular verb is one that does not. Keep in mind that each sentence you write will need to have agreement between its subject ...