Watch the following video for a full explanation on how to form compartive adjectives:
If you still have problems with using comparison, check the following notes for a more careful study of it :
Let's move on! The use of Some and Any is very easy to understand, but just in case you didn't fully acquire it, check this slide presentation and try the exercises below, both on comparison and quantifiers:
Exercises on comparatives:
http://www.englishexercises.org/makeagame/viewgame.asp?id=2065
http://www.ego4u.com/en/cram-up/grammar/adjectives-adverbs/adjectives/exercises
http://www.better-english.com/grammar/comparatives.htm
http://www.englisch-hilfen.de/en/exercises/adjectives_adverbs/adjectives_comparison_sentences2.htm
Exercises on quantifiers:
http://www.englishexercises.org/makeagame/viewgame.asp?id=1657
http://www.englishexercises.org/makeagame/viewgame.asp?id=5271
http://www.bradleys-english-school.com/online/multiplechoice/aansomeany.html
http://www.autoenglish.org/gr.some.i.htm