1. Tom doesn't have to ride a bicycle. Does Tom have to ride a bicycle? 2. we don't have to promote the site in every possible way. Do we have to promote the site in every possible way? 3. we are not allowed to go to the disco on Saturday. Are we allowed to go to the disco on Saturday? 4. Henry can't swim. can Henry swim? 5. he can't do what he likes. can he do what he likes? 6. she can't clean the room well. can she clean the room well?