1. Sentence Fragments (frag) part of a sentence has been left out
doesn’t convey a complete thought

2. Sentence Fragments My little sister has a dance recital tonight.
Missing Subject
My mother sat up all night sewing her costume.
Missing Verb
My sister will dance the part of the leading ladybug.
Missing Helping Verb
She is scheduled to perform at the end of the recital.
Missing Subject & Verb
I feel I should go to her recital since she goes to all my soccer games OR----
Since she goes to all my soccer games, I went to her recital.
Subordinate clause (no complete thought)

3. Sentence Fragments
In 1865, Western Union needed a telegraph cable. To link America to Europe. Before they could lay the cable across Siberia. Someone needed to survey the land. The task of surveying to George Kennan, an accomplished telegrapher.
went
was given to

4. Fused (Run-On) Sentences
R.O.
two or more sentences have been combined without adequate punctuation
doesn’t show clearly where one idea begins and another ends

5. Fused (Run-On) Sentences
In 1972, a company called Atari created the first video game. It was called Pong.
Missing End Mark
By modern standards it was a very simple game, but it quickly achieved great popularity.
Comma Splice (CS)
(Two complete thoughts are separated only by a comma.)
By modern standards it was a very simple game; it quickly achieved great popularity.
3 solutions for comma splices:
, conjunction (*grammatically correct) ;
. (capital letter)
By modern standards it was a very simple game. It quickly achieved great popularity.

6. Fused (Run-On) Sentences
Kennan was not a linguist, he thought
Russian was impossible to learn.