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.

Take our English quiz and find out if you know the plurals of these tricky words. Is the word 'sheep' singular or plural? What is the plural form of 'information'? While you can derive the plurals of ...

Is it 'spoonsful' or 'spoonfuls'? 'Fish' or 'fishes'? Take our singular-plural English quiz and see how many you manage to get right. Answers are provided upon submission of results on each page and ...

A single is a mongoose. But two? - Shutterstock Not all nouns are equal. And not all are pluralized by simply adding an -s at the end. How many of these irregular plural nouns do you know?

The couple is going to purchase the house? Or the couple are going to purchase the house? Even after all my years of editing, I can still get tripped up trying to make verbs agree with collective ...