In this video, we learn how to speak English: reported speech with modals. Modal verbs include: must, should, and could. The expressions include: have to and supposed to. By reading the sentences, you will see which words can or cannot be changed. If the word changes the meaning of the sentence, you cannot use it with the sentence. In reported speech, you do not change perfect modals, which are word that are in their past forms. Modal verbs that do change include "can" being switched to "could". These are both changeable in a sentence and won't change the meaning. By practicing, learning these verbs can be easy!