Grammar & Punctuation – Changing words.

So far we have looked at four grammatical levels: sentence, clause, phrase, word. There is just one more we need to be aware of. Some words can change their form according to where they are placed in a sentence and how they are used. For example, nouns change their form according to whether they are singular or plural:
house – houses
mouse – mice
child – children
Some personal pronouns have different forms according to whether they are the subject or the object of the sentence:
He was my boss at Sanders & Webb.
I couldn’t stand him.
These different forms of a word are referred to by grammarians as MORPHEMES. The study of how words change their forms according to use is MORPHOLOGY.
For Scientific english editing and Medical Writing Services visitwww.manuscriptedit.com