For example,“dogs” is the plural of “dog”.例如:dogs是dog的复数。
The verb should be in the plural, e.g. “have” in “they have”.这个动词应用复数形式,如:they have中的have。

［反义词］ adj.  singular
［词源］＜古法语plurel(更多的)

用作定语
▲～+n.
Here you should use plural pronoun.这里你应该用复数代词。
A plural marriage is forbidden by many countries.一夫多妻,一妻多夫制被许多国家禁止。
用作表语
▲S+be+～
“Boy” is singular, and “boys” is plural.boy是单数, boys是复数。