Normally, we pluralize a noun by adding a final s or es to the singular form. But some nouns have irregular plurals, so they have to be memorized. Try our quiz to see whether you've been pluralizing irregular nouns correctly.1. Canada fly in a distinct V-formation.geesegoosesgeeses2. are always used in pairs.ParenthesisParenthesesParenthesi3. Bull have antlers that can span up to 1.5 metres.moosemoosesmeese4. When you roll , you're rolling more than one game piece.diedicesdice5. The Royal Canadian Mint stopped producing in 2013.pennyspenniespenny6. Peng spent his entire weekend watching his favourite TV .seryesserieseries7. When are born, they weigh about 80 lbs.calfescalfscalves8. are wild ox that live and migrate in herds.BisonesBisonsBison9. The teacher marked their with a red pen.quizzesquizesquizs10. The were lined up on the flight deck.aircraftsaircraftesaircraft