Formal and informal

Формальное письмо

Letters objecting to someone's plans

I am writing to express my concern /disappointment / alarm at hearing ...

I was extremely alarmed/sorry/distressed to hear about your plans to ...
As I think you know, …
May I point out that …
I feel I really must object to ...
I am extremely concerned at the thought that ...
It must be very clear that ...
If these proposals go ahead, ... will happen.
Another threat to ... , if these proposals go ahead, would come from ...
I dread to imagine what damage this will cause.
May I respectfully suggest that you ...
I was wondering if you had considered this alternative?
Would it not be possible to ... ?