First watch the video about plural forms of nouns and then try out the exercise.
Most singular nouns are made plural by simply putting an -s at the end. There are many different rules regarding pluralization depending on what letter a noun ends in. Irregular nouns do not follow plural noun rules, so they must be memorized.
Plural Forms of Nouns Exercise
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You can find more short videos that focus on grammatical points and words that often get confused in English. The lessons are regularly added each week. We also add videos for KET, PET, FCE, IGCSE ESL revision.