If you don't know how to punctuate an adverb clause or couldn't advise someone when to use a semicolon rather than a colon—even with a gun to your head—consider the two standards for punctuation in ...

The age-old semicolon is dying out as Britons admit to never or rarely using the punctuation mark, a study has found. In English-written 19th century literature it appeared once in every 205 words, ...