Punctuation problems

The most common punctuation problems in English are:

comma splice
two independent clauses joined by a comma:
Bad example: She always liked a walk in the afternoon, one day she was just walking along as usual ...
Better: She always like a walk in the afternoon. One day she was just walking along as usual ...
run-on sentences
one or more independent clauses written together as one sentence without appropriate joining mechanisms (see markers)
Bad example: She felt very hungry her mother called her in for tea but she didn't come her mother was very worried.
Better: She felt very hungry. Her mother called her in for tea, but she did not come. Her mother was very worried.
incomplete sentences
a dependant clause standing alone as a sentence
Bad example: Because Kelly never misses her tea.
Better: Her mother was very worried, because Kelly never misses her tea.

Click on the headings to find out what these mean and see examples.

You can also practise identifying and correcting punctuation problems.