Forming plural nouns in English might be tricky. Think about Mickey Mouse, for instance. What if there were two of them? Right, 2 Mickey …
Mice! Sometimes learners do not realize that the word they are using is already plural, e.g. media, data, criteria or bacteria, and the corresponding singular forms come as a surprise. Anyways, learning is as easy or difficult as you tell yourself it is. If you think that it is no big deal and look on the bright side of life, you will learn all these irregular forms in no time. EnglishLab.Net Irregular Plural Noun Crossword Puzzles should be of some help in this pursuit of yours or your students’.