the other后面的动词必需变成单三形式吗?

1 another表示不定数目中的"另一个"如:I do not like this jeans,would you please show me another one?
2 other表示剩余的全部中的其他.通常以some...other 出现,如
On the playground,some students are playing basketball,other students are playing football.
3 others=other+名词如上:On the playground,some students are playing basketball,others are playing football.
4 the other表示两个中的另一个,通常以one....the other出现,如:They have two childrens,one is a boy,the other is a girl.