You better have great grammar, because the Grammar Police is waiting inside this section - Welcome to our Grammar Puns!

I had my dad proof read an essay of mine back in High School. He said my grammar was a little funny.
Apparently I need to work on my pun-ctuation.
Why didn't the sentence have a period?
Because it was pregnant.
How does the Grammar Nazi party fund its government?
Through a syntax.
In grammar you shouldn’t do double negatives.
It’s a no no.
A bit late but here goes anyway: what do you call the elf who checks Santa's grammar?
A subordinate claus!
What vehicle does a grammar teacher drive?
A Syllabus.
I was arrested by the grammar police for not using the full stop correctly.
I am now looking at a long sentence.
I hate it when the grammar Nazis single me out.
It seems like a which hunt.
what do people win at fancy grammar competitions.
a posh trophy.
I violated grammar rules, so I got punished with the death sentence.
Death.
To get with the times, Grammar Nazi's have changed their name.
They now prefer to go by Alt-writists.
what do you need to have proper grammar?
a proper grampar.
What is Grammar?
The difference between knowing your sh*t, and knowing you're sh*t.
Grammar Nazis for math should be called Fibbonazis.
Nothing runs a pun like bad spelling, accept poor grammar's.
What do you say to comfort a grammar teacher?
They’re, there, their.
What is a grammar vampire's least favourite drink?
Type-O.
What do you call a Belgian who's bad at grammar?
An twerp.
My wife was just recently diagnosed with colorectal cancer and now has surgery scheduled to remove a couple of inches of her colon. I expect her grammar will improve as a result.
Because she's going to have to learn how to use a semicolon.
How many grammar cops does it take to change a light bulb?
Too.
What happened when the semi-colon broke grammar laws?
He was given two consecutive sentences.
Everyone remembers the common hieroglyphics grammar rule...
Eye before flea, except after sea.
Grammar has never been my strong suit.