Morphology..

Morphology? What is it? Based on my reading on a source from http://en.wikipedia.org/wiki/Morphology, morphology is the study of the structure and content of word forms. It includes inflection, derivation, and the formation of compounds. 

Under morphology, we should know what "morpheme" is. A morpheme is the smallest meaningful unit in the grammar of a language.(http://www.sil.org/linguistics/GlossaryOfLinguisticTerms/WhatIsAMorpheme.htm). I can say that morpheme is minimal parts of words. 

Morpheme can be classified into three type which are free morpheme, bound morpheme and also allomorph. Free morpheme is the morpheme that can stand by themselves and give us meaningful word. Unlike the bound morphemes that require free morphemes to construct a meaningful word. Bound morpheme cannot stand by their own. 
Bound morphemes can be classified into two types which are derivational and inflectional. Derivational morphemes are the morphemes that will create new word and maybe  the part of speech of the word when the derivational morphemes are added to its base word. For example, when derivational morpheme "un" is added to base word "like", the meaning of the new word will be totally changed. Another example is when the suffix "ness" is added to base word "happy"(adjective), it will become "happiness" ( noun). Both of them have different word classes. Examples of derivational morphemes are shown in the table below.

Affix	Attaches to	forming	example
Anti-	nouns	nouns	Anti-aircraft, anti-smoking
Un-	Adjectives, verbs	Adjectives, verbs	Unhappy, undo
Re-	verbs	verbs	Rearrange, recheck
Dis-	Verbs, adjectives	Verbs, adjectives	Disown, dishonest
-ment	verbs	nouns	engagement
-ize	Noun,adjective	verb	Memorize, sterilize
-ism	Nouns, adjectives	nouns	Capitalism, realism
-ful	nouns	adjectives	Careful
-y	nouns	adjectives	oily
-ly	adjectives	adverbs	Happily, sadly

Meanwhile inflectional morpheme is the morpheme that does not change the meaning of base word. According to Bauer, 1988: 12, there is no changes in meaning of the base word for inflectional morpheme or the word class of the base word. 

Inflectional morphemes are those which do not create new meaning. These morphemes never change the syntactic category of the words or morphemes to which they are attached

(Bauer, 1988: 12)

http://wordformation.blogspot.com/2008/04/derivational-morphemes.html

Example of 8 English Inflectional Morphemes can be read here:
http://www.arts.uwaterloo.ca/~raha/306a_web/EnglishInflectionalAffixes.pdf

Take a look:

http://en.wikipedia.org/wiki/Morpheme#Classification_of_morphemes
 http://introling.ynada.com/session-6-types-of-morphemes

http://www.uncp.edu/home/canada/work/caneng/morpheme.htm
http://wordformation.blogspot.com/search/label/Derivational%20morphemes 

The more you learn, the more you will realize that there are many other things that you do not know. The more I learned about morphology, the more I think that I should work harder to be able to master morphology. There are a lot of things that I should learn. I believe that it is very important to master this morphology before I can teach in the future. And I find that learning the morphology of English language is quite challenging for me. Actually, I had learned about morphology before in 2008, but it was all about morphology of Malay Language. It was quite similar but it is more difficult to learn the morphology of English since I am not too good in English.