礼貌高级句式

i wonder if i could invite you to dinner tomorrow evening.

类似的句式

would it be possible for to...

i would like to..

please...

i would be grateful if you could.....

i should be most grateful if you could....

i would appreciate it if you could...

we were windering if you could

表示谢绝：

i would love to , but i am afraid i have already.......

表示建议：

i think we ........

i prefer....if you do not mind.

i would rather....if you do not mind,

常见的抱怨批评导语句型有：

i must complain about...

i wish to make a complain about...

i am writing to complain about one annoying aspect of your service...

i regret to inform you that..

i am sorry to inform you that

i have always been interested in ....until you...

i have always enjoyed....until you.....

i am writing to express my dissatisfaction with the quality of....

i am not satisfied with....

表达抱怨批评情绪的方式：

i am much disappointed about...

i can not understand and appreciate your...

i can only conclude that...is an exception. it is , however ,enough to keep us from..

what i found intolerable were the countless hours wasted in..

this is more than i could tolerate

i note with regret that... not just a loss of... but a loss of...

it is regrettably true that tasteless program...