Have to, don't have to, must, mustn't (1) Type the correct answer into the box Use contractions where possible Youhave a passport if you want to travel abroad Youarrive late Youstand on the plane There are seats for everyoneHave to, must Have to is NOT an auxiliary verb (it uses the verb have as a main verb) We include have to here for convenience Must is a modal auxiliary verb In this lesson we look at have to, must and must not, followed by a quiz to check your understanding have toDon't have to ?
Speculation And Deduction Modal Verbs