Formal letter Endings

1) Yours faithfully, / Respectfully yours,/  If you do not know the name of the person, end the letter this way.
2) Yours sincerely,/ Sincerely,/ Sincerely yours,  If you know the name of the person, end the letter this way.
3) Your signature  Sign your name, then print it underneath the signature. If you think the person you are writing to might not know whether you are male of female, put you title in brackets after your name.
4) Very truly yours Closing for formal business letter in USA
5) Best regards / Kind regards / Regards Used as a standard in e-mail communication to end a letter.
6) I look forward to hearing from you / I am looking forward to hearing from you. Both should be followed with a name of the sender and signature