Modal Verbs of Obligation ,Deduction and Possibility

♥  Obligation: Must, Have To, Mustn't

√ Grammar : have to, must, mustn't,have to/don't have to
√ Explanation in Spanish

√ Exercise 1
√ Exercise 2
√ Exercise 3
√ Exercise 4
√ Exercise 5
√ Exercise 6
√ Exercise 7

 

♥  Deduction: Must, Can't,Might/May/Could

√ Grammar
√ Interactive Grammar Review in Slides

√ Exercise 1
√ Exercise 2
√ Exercise 3
√ Grammar Review  and Exercises with Slides
 

 Source:  Many thanks to them!!
cristinacabal.com
http://www.englishclub.com
http://elblogdelingles.blogspot.com.es
http://www.english-grammar-lessons.com/
http://www.englishgrammarsecrets.com/
http://www.englishexercises.org/
http://www.englishpage.com/
http://english-zone.com/
http://www.better-english.com/
http://www.tolearnenglish.com/
http://www.tinyteflteacher.co.uk/