When a writer capitalizes and punctuates a piece of a sentence as if it were a complete sentence, that's a sentence fragment. The most common types of fragment are the following:

Verbal phrase punctuated like a sentence

Here are some examples of common mistakes:

• Connecting the two pieces.
• To find where the Beatles lived.
• Therefore accomplishing his third goal.
• Giving you reenactments of her past life.

To correct this type, add a subject and verb to the beginning of the phrase or add a verb plus adjective or noun.

• He liked connecting the pieces.
• To find where the Beatles lived was our objective.

Dependent clause of a complex sentence (the half of the sentence which begins with the connecting word.)

Here are some examples of common mistakes:

• Because she got paid today.
• A man who is complex to some.
• Which are shiny and dappled.
• Until someone releases them with a bite.

To correct this type, connect the dependent clause to the sentence before or after it (whichever makes sense).

• She took us to lunch because she got paid today.
• I talked with my father, a man who is complex to some.