Commas!!!! BIG PROBLEM! 6 magic rules


1) Put a comma before a change of subject (podmět)

E.g. Bob was grumpy, and it made life miserable for everyone.

Bob ate fish, and his doggy ate dog food.


2) NEVER put a comma before ‘that’, ‘if’ or ‘when’ even if there is a change of subject!


I think, that English punctuation is stupid. L

I do not know, if Bob is home. L

I got home, when Bob was having a fit. L


3) Use a comma before BUT, SINCE and AS when they are conjunctions (spojky).

E.G. I was tired, but I continued working nonetheless.    ALE     Bob ate all the bananas but one.

I was tired, since/as I had been thinking in Czech all day.    ALE: I have been here since noon.


4) Put commas around non-defining clauses and participle clauses (přechodníky), and after the
hypothesis of a conditional sentence.


E.G. Bob, who is my best friend, is coming to visit me.


(Defining Clause: The man that I met at the supermarket is coming to visit me.)


Bob’s sisters, seeing that he was an idiot, decided to adopt another brother.

If I could, I would switch to a logical language like German.


5) Put commas around (or after) editorial and organisational comments, and time phrases. E.G.
Unfortunately, Bob did not enjoy the trip.

The trip, in my opinion, was a waste of time.

As far as I know, it will not snow today.

In the early part of 2009, I was working for a publisher.


6) lists

A, B, C(,) and D



Some facts you have written are actually untrue.

Due to the lack of offered conditions, I request compensation.