I regard her as a good worker.
我认为她是个好工人。
I regard her as good.
句中as不可省去,也不可以用to be去替换。
I have a high regard for your father.
我非常尊敬你的父亲。
Before graduation I knew very little as regards foreign affairs.
With/In regard to writing essays, I should like to have your advice.
Please give my best regards to your parents.
注意Best regards等同于I Send you my best regards.所以用句号结尾,但 With best regards是短语,用逗号结尾。