• Comma
• It's and its
• Their, there, they're
• Verb subject agreement
• Verb tense agreement
• Letter
• Quotation
• Direct Quotes
• Other Quote Rules
• Quote Punctuation
• Homophones
• Apostrophes
• Misplaced Words
• Articles
• That and which
• Hyphens
• Elliptical
• Revising
• Incorrect
• Correct

Incorrect Sample Sentences

1. Comma usage and sentence structure:

• Scientists are excited about exploring Mars, they don’t know if it ever had life.
• The quarterback in that commercial, is the one who threw the interception today.
• While scientists are excited about exploring Mars.
• The performer swallows knives forks, fire and glass.
• The politician who had been acquitted many times before, was found innocent.
• The politician who had been acquitted many times before was found innocent.

2. It’s and its:

• The dog dropped it’s bone
• Its a nice day outside because the city doesn’t have it’s normal smog.

3. Their, there, and they’re:

• The bears went home and found Goldilocks their.
• I went to there house.
• There still sleeping dog lies they’re while their home.

4. Verb subject agreement:

• The data does not support the conclusion.

5. Verb tense agreement: 

• I went to the store, and although I saw her there I did not saw her car.

6. Words that change with a letter added or removed:

• I went to here house.
• If she came her from her house, it would be faster.
• I took a deep breath and tried not to breath too fast.

7. Quotation marks

• "I went," he said angrily "to the store and bought some eggs."

8. Direct quotes

• Who said, "I feel great today?"
• The car was going faster than a "speeding bullet."
• The above paragraph discussed 'single quotes.'
• If you see a note such as Define technical term, or Subdivide complex question, it instructs you to write a definition question or do whatever the note calls for.
• A typical table of contents would have one main heading, such as Geriatrics, under which there would be about eight topics, each of which would contain about eight subtopics.

9. Commas and periods to the left of quotation marks:

• According to Mr. Smith’s statement, "The world is flat," and has "many places where you can fall off".

11. Homophones:

• Blood bares the burden of carrying oxygen to the body.

12. Apostrophes and plural nouns

• Look at James car.
• The body’s and the mind’s reaction to the same medication can differ.

13. Commonly misplaced words

• I would rather use the toothbrush then the comb to clean my teeth.
• Accept for the budget section, I except your proposal.
• His house is comprised of bricks, plaster and wood.
• His house is composed of of bricks, plaster and wood.

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