You are not the only one who has trouble with spelling in English!
Read the article. Do you have the same problem with the same words?
Have you ever participated in a spelling bee?
http://www2.sharonherald.com/herald/nie/spellb/spelllist3.html
Spelling of verb endings.
http://www.grammar.cl/Notes/Spelling_ING.htm
An interesting perspective on reading and sounds.