The apostrophe in contractions
The most common use of apostrophes in English is for contractions, where a noun or pronoun and a verb combine. Remember that the apostrophe is often replacing a letter that has been dropped. It is The apostrophe probably causes more grief than all of the other punctuation marks put together! The problem nearly always seems to stem from not understanding that the apostrophe has two very different (and very important) uses in English: possession and contractions.