I'll try, though it's been a lot of years since I studied this.
A normal, correct sentence contains a subject, a verb and a modifier, For example:
I (subject) like (verb) to read (modifier)
A run-on sentence contains the same format, but tends to ramble on and makes the meaning of the sentence vague. For example:
I like to read because it's fun and my teacher thinks it's a good way to learn things.
As you can see, it's vague because it contains two subjects (I and teacher) and two verbs (like and thinks), as well as a couple of modifiers (to read and to learn).
A good sentence should contain just one idea. To make the above correct, it should read:
I like to read. I think it's fun. My teacher thinks it's a good way to learn.
I hope this helps.
Edited by valois (Fri Jul 26 2002 06:03 AM)
People try to change the world, instead of themselves. John Cleese