Comma rules

Comma rules
We use commas in the following situations:
1. Items in series:
surprised, pleased, happy
Eat, drink and be merry.

2. Co-ordinate Adjectives:
a large, ugly snake

3. Nouns in Direct Address:
Please, Mum, can I go out?
Sally, what are we going to have?

4. Addresses:
Sherlock Holmes lived at 221b Baker Street, London.

5. Dates
I was born on November 23, 1975.

6. Interrupters:
Few people, however, have darkroom facilities for developing their own films.

7. Appositives and Non-restrictive clauses:
Mary, who used to work in London, sent me a letter.

8. Compound Sentences:
Americans use the word schedule instead of timetable, but Canadians usually use timetable.
Use a semi-colon when there is no conjunction:
Americans use the word schedule instead of timetable; Canadians usually use timetable.

9. Introductory Elements - adverbial clauses, participial phrases, prepositional phrases followed by an infinitive:
If someone makes a mistake, no one will know who did it!
Thinking he had drowned, we returned to our base.
No comma:
No one will know who did it if someone makes a mistake.

10. Quotations:
"I can take it home for dog," said the boy.
"I will come," she said, "when I am ready."