Let me explain the whole:
First: What is run on sentence?
A run-on sentence is a sentence in which two or more independent clauses (i.e., complete sentences) are joined without appropriate punctuation or conjunction.
Example:
I was reading GMAT he was playing football. -----A run on sentence.
Second: How to overcome run on sentence?
Answer:
There are five ways to fix run on sentence:
1. Period PLUS Capital:
Example:
I was reading GMAT. He was playing football.
2. COMMA + FANBOYS:
FANBOYS = For, And, Nor, But, Or, Yet, So.
Example:
I was reading GMAT, and he was playing football.
3. IC + Semicolon + IC:
Example:
I was reading GMAT; he was playing football.
4. IC + Semicolon+ Conjunctive Adverb + COMMA + IC:
Example:
I was reading GMAT; however, he was playing football.
5. Subordinating:
Commonly used list of subordinating conjunctions:
After, how, till ( or 'til), although, if, unless, as, inasmuch, until, as if, in order that, when, as long as, lest, whenever, as much as, now that, where, as soon as, provided (that), wherever, as though, since, while, because, so that, before, than, even if, that, even though, though.
Example:
When I was reading GMAT, he was playing football.
@Reader,
Your ideas are fine. please go on..
I could not understand "not true".
Your another question:
Independent clauses are supposed to be sentences when separated.
==> It is no supposed to be. It is 100% sure that independent clauses are complete sentence, and without independent clause no sentence is complete sentence.
Thanks.