Who’s and whose actually follow the same rule as it’s and its. Who’s is always short for who is; whose is the possessive. Two former workmates taught me a good way to remember this – have you heard of Who’s Who? It’s a British publication that gives basic information about a number of well-known people … More Who’s and whose
Lots of people struggle with its and it’s – here’s a way to help remember. There’s more on this in my post Using apostrophes.
Apostrophes are used in English to show that: there are letters missing from the word (contractions) something belongs to someone (possession or ownership). There are exceptions to how these rules apply, and I’ll talk about some of these, too. Possession The general rule is that ’s shows possession. So to say Sam’s or Betty’s shows … More Using apostrophes