商业函电应力求用语专业，句子简短，切忌拐弯抹角，要尽量使用短字短句，省去多余的词语，少用被动语态，使对方感到亲切。现代英语中尽量避免使用陈旧字词。下面列出一些常用语并加以比较，这些均为作者之见，供读者参考。

Better：I am pleased to tell you...

Inferior： I have pleasure in informing you...

Better：We do not expect that.. ‘

Inferior： We do not anticipate that...

Better： Please inform us...

Inferior：Please be good enough to inform us...

Better：We are sorry we can't meet your request.

Inferior：We express our regret for being unable to meet your request.

Better：The matter is being considered.

Inferior: The matter is under active consideration.

Better：The interest amount is correct.

Inferior：The interest amount is definitely correct.

Better：We think you charge us too high.

Inferior：We rather think you enlarge us too high.

Better： We are facing a difficulty.

Inferior : We are facing a real difficulty.

Better : We are writing about...

Inferior：We are writing with reference to...

Better：We shall be able to...

Inferior： We shall be in a position to...

Better：During the next few days...

Inferior: In the course of the next few days...

Better： We granted them a load of $ ...

Inferior: They were granted a loan of $ . . . by us.

Better: Our clients will pay their drafts when due. 

Inferior :The drafts will be paid by our clients when due.

Better：We have received your...

Inferior : We beg to acknowledge receipt of your...