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 ...
In this sentence, the subject is Matt, which is singular; therefore, our verb is eats. Matt and Nate eat pizza. In this sentence, the subject is Matt and Nate, which is plural; thus, we have to change ...