商業(yè)函電應力求用語專業(yè)，句子簡短，切忌拐彎抹角，要盡量使用短字短句，省去多余的詞語，少用被動語態(tài)，使對方感到親切。現(xiàn)代英語中盡量避免使用陳舊字詞。下面列出一些常用語并加以比較，這些均為作者之見，供讀者參考。

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...