Basic English Language Skills CHAPTER 3: PUNCTUATION Parts of speech are used to construct meaningful sentences. Punctuation refers to the various signs and symbols that are used in  written language to: Punctuation rules are there to make sure that we all use punctuation  marks consistently. If we all used punctuation according to our own  preferences, it would become incredibly confusing, and it would no longer  help to clarify the meaning of our text. Developed for Oxbridge Academy •  Clarify meaning •  Show emphasis •  Break passages of text into separate parts, making them easier  to read ???