Run-ons/Fragments

has a subject & a predicate; makes sense on its own

tells the "who"

does not make sense on its own; needs another clause

tells the "do"

Sentence example

has a subject (who) & a predicate (do)

has 2 independent clauses together as 1 sentence

Run-on example

by adding a comma and a conjunction

by adding a comma

by adding punctuation and starting a new sentence

by putting a period

On Tuesdays we always eat tacos my mom loves Taco Tuesday.

On Tuesdays we always eat tacos. My mom loves Taco Tuesday.

On Tuesdays we always eat tacos, because my mom loves Taco Tuesday.

There are only about 50 Javan rhinos left in the world, and all of them are in an Indonesian National Park.

There are only about 50 Javan rhinos left in the world. All of them live in an Indonesian National Park.

There are only about 50 Javan rhinos left, all of them live in an Indonesian National Park.

Mrs. Alfieri was born in Seoul, Korea. She was adopted at the age of 3 months old.

Mrs. Alfieri was born in Seoul, Korea, and was adopted at the age of 3 months old.

Mrs. Alfieri was born in Seoul, Korea, she was adopted at the age of 3 months old.

only the subject of a sentence

only the predicate of a sentence

does not make sense on its own

a complete thought

sentence

fragment

it is the subject and is missing the predicate

it is the predicate and is missing the subject

run-on

fragment