For have to practice exercises look no further. There are now
21 worksheets on this topic and even more if you are interested in other modal verbs so be sure to check out other sections of the site for those.
Here is a sample of what you will find on this page. The worksheet combines have to and must; it includes lesson notes for an entire fifty minute lesson as well as all the required handouts and answer keys. Since there are four individual practice activities, feel free to pick and choose what you want to use in class; there is no need to use the whole lesson and choosing just certain activities gives you much more freedom to include your own material. It is that easy! If your students are working on specific vocabulary not included in this lesson, you can simply use these activities as inspiration for your own worksheets which you could tailor to your students’ interests. Busy Teacher would like to see your worksheets; if you have worksheets on this topic, please upload them and help out fellow teachers around the world.
Topics: Have to, 
![[Have To / Don't Have To] Practice](http://busyteacher.org/uploads/posts/2012-01/1327441497_pres.jpg "/uploads/posts/2012-01/thumbs/1327441497_pres.jpg")
![Modal Verbs Worksheet (obligation, necessity, prohibition, permission, duty) [WITH VIDEO]](http://busyteacher.org/uploads/posts/2011-05/1306456979_gforce.jpg "/uploads/posts/2011-05/thumbs/1306456979_gforce.jpg")
