http://grammar.ccc.commnet.edu/GRAMMAR/definitions.htm
Here’s a little rhyme — by David B. Tower & Benjamin F. Tweed —that teachers used in days gone by to help students learn the parts of speech. (We include it here in response to popular demand. Why the song leaves out pronouns is a mystery. A writer from Richland, Washington, suggests “A PRONOUN replaces any noun: / he, she, it, and you are found. ) It has been set to music, but we’ll leave that up to you to discover or create for yourself:
Are ARTICLES: a, an, and the.
A NOUN‘s the name of anything,
As: school or garden, toy, or swing.
ADJECTIVES tell the kind of noun,
As: great, small, pretty, white, or brown.
VERBS tell of something being done:
To read, write, count, sing, jump, or run.
How things are done the ADVERBS tell,
As: slowly, quickly, badly, well.
CONJUNCTIONS join the words together,
As: men and women, wind or weather.
The PREPOSITION stands before
A noun as: in or through a door.
The INTERJECTION shows surprise
As: Oh, how pretty! Ah! how wise!
The whole are called the PARTS of SPEECH,
Which reading, writing, speaking teach.