either...or; neither...nor; both...and列举句子。

1. Either dye or paints are used to colour cloth.
不论是染料还是颜料都是用来染布的。
Neither she nor I go shopping tonight。
我和她晚上都不去购物。
Both you and I are students。
我和你都是学生
2.过去进行时的构成 be+doing ，表示在过去的某一时刻正在发生的事情
主语+was/were+ving+其他
3.The cat will scratch you if you pull her tail．
如果你拉猫的尾巴,它会抓你。

Either he or me likes fishing.
Neither he nor me like fishing.
Both he and me like fishing.

1.Either you or I will go to the meeting.
Neither he nor you are wrong.
Both you and I are students.
2.过去进行时是表示在过去某一时刻正在进行的动作，他往往与某一个时间状语连用。如：this time yesterday,then等。它的构成：was/were doing.
He was doing his homework at 7 o'clock yesterday evening.
3.if既可以引导真实条件句，又可以引导非真实条件句（虚拟条件句）。
真实条件句：If it is rainy tomorrow,I won't go there.
非真实条件句：If I were you,I wouldn't go there.

1.Either you or he will go there.
Neither you nor I will go there.
Both you and I will go there.
2.构成：be(was,were）+V ing(现在分词）
基本用法：表示在过去的某一时刻正在发生的事情或存在的状态。
I was watching TV when somebody knocked at the door.
I was reading while he was drawing.
3.非真实条件句：If I were you ,I would help him.

真实条件句:I won't go there if it rains tomorrow.

either...or...
neither...nor连接两个主语时，其谓语动词应与最近的一个主语在人称和数上保持一致，这就是我们通常说的"就近原则"。
both...and表示两者都……
例：both
you
and
i
are
good
students.
你和我都是好学生。
注意：动词谓语用复数
either...or表示两者中有一个，要么…要么
例：either
you
or
i
am
good
students.
要么你是好学生，要么我是好学生。
注意：动词谓语就近原则。
neither...nor表示两者都不
例：neither
you
nor
i
am
good
students.
你和我都不是好学生。
注意：动词谓语就近原则。