Grammar
Independent clauses
Has a subject and a verb
Period
Seperate 2 independent clauses
I have a dog. He is very cool.
Semicolons
Seperate 2 independent clauses
The 2 sentences must be closely related
My dog likes apples; Her dog likes oranges.
A. My dog likes apples; Her dog likes oranges.
B. My dog likes apples, Her dog likes oranges.
C. My dog likes apples. Her dog likes oranges.
D. My dog likes apples: Her dog likes oranges.
Commas
Seperating a list
I like oranges, apples, and bananas
FANBOYS
For
And
Nor
But
Or
Yet
So
He is scared of heights, yet he still jumped in the water.
Non-essential info rule
My car, which is blue, is outside.
My name is Keshav, and I have a lot of extension cables, I am 10 years old.
A. ,
B. .
C. ;
D :
Introductory clause
I had a car, before it got towed
Independent, Dependent
Interrupters
The train, however, was delayed by an hour.
Direct speaking
Sarah, pass the salt.
Comma splice
Independent, Independent
^ this is not allowed
run-on sentence
A sentence that keeps going on and on
Colons (interchangable with em dashes)
Introduces a list
The groceries this week are: cheese, milk, and chicken.

Before a colon you must have an independent clause
My name is Keshav: said the boy.
Em Dash (interchangable with colons)
—
Put off information
I have a dog — he is blue — and he ran away.
I have a math teacher—she is a smart one.
If an em dash happens, it either ends on another em dash or the sentence ends.
I have a dog — he is blue _ and he ran away.
A. ,
B. —
C. ;
D. .