Fixing run-ons with a comma and a coordinating conjunction

There are seven coordinating conjunctions in English: and, but, or, nor, for, so, and yet. When a coordinating conjunction joins independent clauses, it is usually preceded by a comma.

However is a transitional expression, not a coordinating conjunction, so it cannot be used with only a comma to join independent clauses.

Exercise: Run-on sentences 1

Exercise: Run-on sentences 2

Exercise: Run-on sentences 3

Exercise: Run-on sentences 4

Exercise: Run-on sentences 5

Exercise: Run-on sentences 6

Related topic:

Commas with coordinating conjunctions

coordinating conjunction and, but, or, nor, for, so, yet; used to join elements of equal grammatical form.