What is the rule for using apostrophes to show possession of proper nouns that end in a vowel?

Answer 1

There is no difference if ending in vowel or not ending in vowel. To show possession by one single owner, add an apostrophe and the letter s to the owner: the hermit's tooth (the tooth belongs to the hermit) Sulu's tooth (the tooth belongs to Sulu) Another way to think about this rule is to see whether the word of expresses what you're trying to say. With the of method, you note the sharp tooth of the bear = the bear's sharp tooth the stained tooth ofthe man = the man's stained tooth The noun indicating Time can be the owner - Sometimes, no clear owner seems present in the phrase. Such a situation arises mostly when you're talking about time. If you can insert of into the sentence, you may need an apostrophe. To give you an idea of how to run the "of test," here are some phrases that express time: one week's tooth cleaning = one week of tooth cleaning a year's dental care = one year of dental care When you're talking about time, give your sentence the "of test." If it passes, insert an apostrophe to indicate that the noun of time is the owner. - Tim Timothy Kukler www.freetim.com