参考:
1.公司是可数名词 所以有2个2个以上的时候要用复 数,
例子 i am working in an company
there are two companies in that building
2.根据不同的语境有不同的用法,以 people 为例
当表示 人们 时用作单数,比如
there are many people
当表示 民族 时用做复数 比如
there are 56 peoples in china.
参考资料里的 是集体名词概念 可以看看
3.名词的单数 前可用冠词修饰
a /an/the + 单数名词 比如 an apple a boy the sun
the + 形容词 表示一类的事物 比如 the old 老年人
the kind 善良的人
4. 一般式 过去时 过去分词
die died dead
例子 if you do this earlier nobody would die
she was died in 1989
she has been dead for 12 years
一般式 过去式 过去分词
lay laid laid 躺 搁置 下蛋
例子 hens lay eggs
a hen laid an egg this morning
an egg has benn laid this morning
参考:
http://zhidao.baidu.com/question/18254392.html?si=2 一般式 过去式 过去分词
lie lay lain 撒谎 ;躺着
例子 i do not like a person who likes lying
please do not lie
i lay to my father today
i have been lain many times
he lies on the floor
he lay on the floor
he has lain on the floor
不懂的可以来问我
参考资料:http://baike.baidu.com/view/959431.html?wtp=tt