Grammer example using the wrong tense of a verbI go to the store and I bought milk. Go is a present tense verb. Bought is a past tense verb. Bought should be buy milk since these two events both occur at the same time.
Grammer example showing when the subject and verb do not agree
Matt like fish. Matt is plural; like is plural. The sentence should read Matt likes fish.
Grammer example showing double negatives
I don't want no pudding. Don't and no are both negatives. The sentence should read I do not want any pudding.
Grammer example for run-on and fragment sentences
Fragment- Because I ate dinner; this is a fragment because we do not know what happened since you ate dinner.
Run-on- I will drink milk and I will eat my dinner. These are both independent clauses.
The statue was solid marble, stood ten feet high, and must have weighed two tons.
Use a hyphen
If two or more words serve as a single modifier before a noun.
Use a semi-colon
To link two main clauses (those that could stand alone as full sentences) when the second clause begins with: however indeed instead nonetheless otherwise still then therefore thus
Use a colon
To introduce statements that explain, repeat or summarize the preceding idea.
Use a dash
In place of a comma or semicolon to add emphasis or show a change in tone.