If the IRS hasn't raised any issues about your 2005 tax return by now, it is safe to shred it. Last, you should keep any tax return that includes a claim for deducting worthless securities for seven years. If you've lost or discarded a tax return and later need a copy, don't worry.
Rule 2 in the âApostrophesâ section says, âUse the apostrophe to show possession. Place the apostrophe before the s to show singular possession.â. Since âworldâs biggestâ is singular possessive, you need to use âs regardless of which noun follows it.
But in English thereâs always an exception. For plural nouns that do not end in s, add âs, e.g. womenâs rights. Also, the apostrophe is added for the possessive of a noun that is plural in form but singular in meaning, e.g. mathematicsâ formulas. Lastly, for joint possession, the âs is added to the word nearest the object of possession, e.g. Francis and Kuceraâs book. The apostrophe has a number of other lesser-known uses.