How are my father?

不对
My father isn't good.
My father doesn't feel well.
doesn't后面要有个动词

应该是： How is my father?(问身体状况如何)
My father doesn't good.不成立。
My father isn't good.（说明My father 不优秀，不是好人）
My father isn't well./My father doesn't feel well.
My father isn't quite himself.

首先问句不对，应该用How is my father?或How is Father?（在句中mother/father大写可表示自己的母亲/父亲，但注意只适于书面语）
另外这句的意思是问爸爸的健康状况怎么样（如你从外地回家，问亲人们爸爸的身体健康状况时就可以用这句），而不是问爸爸这个人好不好。
回答者不应该是提问人。
可以回答：He is fine, don\'t worry.（他（身体）很好，不用担心）

这种翻译要根据上下文来的！
语句的大概意思就是问：我的父亲怎样？
我的父亲不好！
有可能是问身体，也有可能问脾气什么的！

How are my father?----how is your father你父亲身体怎么样
My father isn't well
不太好形容身体用well
另外父亲是第三人称不可以用are ,!

同意一楼的,doesn't是助动词