My teacher is an English,He is an america.是否有语法错误?如果有,请写出正确的

My teacher is an Englishman.He is an American

如果是说两个人的话，可以有两种说法。
My teacher is an English and he is an American. 应该是你指着另外一个人的时候说第二句话。
如果你要说你们这个老师说个英文老师，他是个美国人，那么应该说：
My English teacher is from America.

My teacher is a English.
English 发音为辅音。

He is an American.
My teacher is an Englishman.

My teacher is an English 没错
He is an america.不对,可以改成He is in America.或He is an American.
但是如果he就指的是前一句的my teacher的话,那么就不能说他既是英格兰人又是美国人,只能改成He is in America.,这样才不矛盾.

My teacher is English.He is from America.
这句话无论怎么改都说不通。
既然他是英国人，怎么可能是来自美国呢？
如果你想表达他是英国人，来自英国的话，应该这样说：
My teacher is English.He is from the UK.
(PS：1楼的少在那忽悠小朋友~）