Fill in the Blanks Modal verbs 2Online version Can cant have to dont have to by Jhon Garcia 1 dont haveto haveto can haveto cant can donthaveto donthaveto haveto I wait for other people to use the bathroom . it is not necessary I leave home after eight o'clock if I want to . I am able to I catch the bus . it is necessary I study in the evening . I am not able to I make my own breakfast . it is necessary I send emails . I am able to I go to the supermarket . it is necessary I have to cook a meal for my family . it is not necessary I work in the evening . it is necessary I stay out after eleven in the evening . it is not necessar y