Zwroty potrzebne do listu formalnego

I am writing to ask/inquiry for some information about/concerning...
I am writing in response/ with regard to your advertisement
I would also like to know/ask if/where etc...

I would greatly appreciate if you could send me some further information
Thank you in advance for/ in anticipation of your reply
I look forward to hearing from you
I am sorry for taking your valuable time

I am writing to You in connection with...
I am writing with regard to/in regard to/with reference to...
I am writing to ask if You could inform me about...
I am writing to enquire about...
I am writng for more information about..
I was interested in your advertisement in...
I would appreciate some further information about...
Reffering to Your advertisement published in...

I would like to know/ask You for...
I would be grateful if You could inform me...
I would aprreciate it if...
I would be interested in knowing...
It would help/ assist me if...
I would like to send me...

I would be very grateful if You could /would reply as soon as possible.
Thanking Yu for Your time and assistance.
Thanking you in advance for Your assistance/co-operation.
I would like to thank You in advance
I look forward to Your reply at Your earliest convenience.
I look forward to hearing from You
Yours faithfully ( jezeli nie znasz )
Your sincerely( Jezeli znasz imie)