Yes it can, but some people say you shouldn't put a comma in front of an and.
In a compound sentence, the comma would be placed before the word but.
In American English, a comma is placed before a coordinating conjunction (FANBOYS - for, and, nor, but, or, yet, so) when it is connecting two independent clauses. However, in British English, the comma is usually omitted before the conjunction.
Comma's are the hardest punctuation mark to place in a sentence. A comma can be placed after instead at the beginning of a sentence if the sentence is a continuation of the subject in the one before it.
Before. Example: I would have punctuated correctly, but the friendly folks on answers.com were misinformed.
No.Sample:Susan, Jane and Amanda are coming as well as our neighbours.
A comma causes a pause in a sentence and a period is a full stop. Never place a period where God has placed a comma.
A comma is placed before and (and all other coördinating conjunctions) when the conjunction is being used to combine two independent clauses. In the sentence "My name is Joey, and I am thirteen years old," a comma precedes the conjunction and to hold the two clauses together.
last comma before the and is not necessary
the comma would be before Or In A Sentencee. =]
Yes, you should use a comma before "Jr." when writing a person's name to separate the person's last name from the suffix. For example, "John Smith, Jr."
It is usually appropriate to place a comma before "but." One should not use a comma after "but."
The sentence "He graduated from college and got his diploma" should not have a comma anywhere. If the second part were an independent clause, there would be a comma before the "and". For example, "He graduated from college, and he wore a clown costume to the ceremony."