Nouns ending in "-f", "-fe", or "-o" worksheet. In English, there are certain nouns that have specific rules for forming their plural forms when they end in "-f", "-fe", or "-o". These rules help maintain the correct pronunciation and spelling of the words. The worksheet you have will likely provide a list of nouns ending in "-f", "-fe", or "-o" and ask you to write their plural forms. It is important to understand and apply the specific rules mentioned earlier to form the plurals correctly. By completing this worksheet, you will practice and reinforce your understanding of these noun forms, helping you improve your grammar skills and enhance your overall knowledge of the English language.