Think you know your plurals? From everyday words like “tomato” to tricky Latin and Greek forms like “nucleus” and “appendix,” this 25-question quiz will put your grammar skills to the ultimate test.
Most of us don’t think twice about plural forms — we just kind of know them. But when you actually have to spell them out, things get trickier. Is it “knifes” or “knives”? “Cactuses” or “cacti”?
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