consonant and –y Change the –y to –I and add –es Pony, ponies, navy, navies Nouns ending in –o Add –es or –s Potato, potatoes, piano, pianos Most nouns ending in –f or –fe Change the –f or –fe to ves Leaf, leaves Most nouns ending in –ch, -sh, -s, or –x Add –es Match, matches, rash, rashes, pass, passes Many two-word or three-word compound nouns Add –s to the principal word Teaspoonfuls, governors generals An adjective has three degrees of comparison: positive, comparative…
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