可數(shù)名詞復(fù)數(shù)
two bananas three bananas
動詞的三單現(xiàn)（第三人稱單數(shù)he she it或某件物品一般現(xiàn)在時）
she dances every day.
the duck swims in the river
某人的
Alice's house
[y結(jié)尾去y加ies,y前面是元音直接加s
f結(jié)尾去v加ves
sh,ch,s加es
有生命的以o結(jié)尾的加es:potatoes,tomatoes,photos,pianos,brushes,teaches,leaves,flies...)
ing：
現(xiàn)在進行時
he is singing now
或
like to sing/singing
或
介詞后的動詞加ing