Modal verbs: obligation, absence of obligation, permission, prohibitionOnline version Match the sentence with the use. by Britt Croonenborghs 1 obligation 2 absence of obligation 3 permission 4 prohibition We need to know every English tense before we can pass the test. After the hike we have got to clean our clothes. Jo had to find a plumber his toilet was clogged. I don't need to see my doctor this week. She didn't have to stay for dinner, but she did. They needn't have gone to the store, I had enough food left to make us dinner. You may follow me if you are lost. We can go out and play, because my mother said we eat in 2 hours. You could ask me for help any time! You can't go outside. You're grounded! We may not leave this escape room until we finished all the puzzles. James mustn't curse so often.