As I have mentioned in part one. There is no need to learn every single rule and every exception to each rule, as that would take years and not all grammar guilds are the same, or even have the same rules.
Nonessential Interrupting Words and Phrases
You know sentences also have those horrible siblings that are always interrupting their flow. These kind of words or phrases are quite easy to pick up. As you read they will automatically disturb your brain or not make complete sense.
Here is some example:
Incorrect: You will not pass this test however I do accept bribes.
Correct: You will not pass this test, however, I do accept bribes.
Incorrect: My brother and I sneaking quietly through the door got into trouble with my mother.
Correct: My brother and I, sneaking quietly through the door, got into trouble with my mother.
Often the phrases will be additional information that you can take out the sentence and the rest of the sentence will still make sense.
Dates and Places
The best way to explain this is to show you. One must always place commas around dates or names of places
Dates:
July 12, 1997
On July 12th, 1997, is my birthday.
However the comma is not needed when there is not day for the month:
July 1997 is the year I was born in.
With places you would separate the names of the places form each other as well as the sentence using commas.
Example: My friend grew up in Bloemfontein, Free State, South Africa, during the 1990's.
Addressing Someone Directly
When a person or group is spoken directly to in a sentence, you must places commas around them (depending on where they lie in the sentence).
In the sentence: You fool, Tim, you must make sure the can is facing the right way in the fire, or it will not blow up.
Start of the sentence: David, you must not stand so close to the fire!
Example with no commas: I wonder if David will be alright from all those burn marks.
Here is a link for a more in depth description of each: Download link
Just on a little side note for self improvement. I will be doing 1 push-up for every 1$ earned on my posts and will give a short feedback every day at the end of each post. As promised I will be doing 95 pushups, today, for yesterdays post. Any not done will carry onto the next day. 20 is carried over to the next day.