1. http://learnenglishkids.britishcouncil.org/es/word-games/make-the-sentences/likes-and-dislikes

2.http://esl.wordzila.com/expressing-likes-and-dislikes-likes-and-dislikes/

3. https://youtu.be/UZT4r1veFPk

4. http://www.eslgamesplus.com/adverbs-of-frequency-hangman-spelling-game-for-esl-efl-practice/

5. https://youtu.be/aNK5mQqs1GI

6. http://www.agendaweb.org/grammar/adverbs-exercises.html

7. http://www.agendaweb.org/verbs/present_continuous-exercises.html

8. https://youtu.be/pDGcOBuHgYo

9. http://www.eslgamesplus.com/present-progressive-continuous-esl-grammar-fun-game-online/

10. http://www.agendaweb.org/verbs/future-exercises.html

11. https://www.ego4u.com/en/cram-up/grammar/future-1-going-to

12. https://learnenglishkids.britishcouncil.org/en/grammar-games/going-plans

13. http://www.agendaweb.org/grammar/relative_pronouns_clauses-exercises.html

14. http://www.perfect-english-grammar.com/relative-clauses-exercise-1.html

15. http://www.agendaweb.org/verbs/future-will.html

16. http://www.learn-english-online.org/Lesson39/willwont.htm

18. https://www.ego4u.com/en/cram-up/grammar/future-1-will

19. http://www.agendaweb.org/verbs/modals-shall-should-exercises.html

20. http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-15134.php

21. https://www.youtube.com/watch?v=Hn_fIrM9JYk

22. https://youtu.be/Hmd25oQCwwo

23. http://www.agendaweb.org/verbs/modals-must-have-to-exercises.html

24. http://www.englishexercises.org/makeagame/viewgame.asp?id=2786

25. http://www.eclecticenglish.com/grammar/HaveTo1A.html

26. http://www.macmillaninspiration.com/inspired/files/2012/07/Grammar-EXTRA_Inspired_2_Unit_7_have_has_to_and_dont_doesnt_have_to.pdf

27. http://www.isabelperez.com/songs/afriend.htm

28. http://www.agendaweb.org/verbs/past_simple-exercises.html

29. https://www.ego4u.com/en/cram-up/grammar/simple-past

30. http://www.myenglishpages.com/site_php_files/grammar-exercise-simple-past.php

31. http://www.agendaweb.org/verbs/past_progressive-exercises.html

32 https://www.ego4u.com/en/cram-up/grammar/past-progressive

33. http://www.myenglishpages.com/site_php_files/grammar-exercise-past-progressive.php