Punctuation Marks
The period
Used at the end of any sentence that is intended to make a statement
I visited my friend in the city. She lives with her mom.
The comma
Used to pause before proceeding
Used to add a phrase that does not contain any new subject
He walked all the way home, and he shut the door.
Used to separate items on a list
The colon
Used before a list . Another use of this punctuation mark is after a heading.
Example: I want the following items: butter, sugar, and flour.
The semicolon
Used is to join together two sentences that are related
Call me tomorrow; you can give me an answer then.