1.   Firstly, my sincere apologies for not having contacted you earlier about your proposal.

2.   Firstly, my sincere apologies for not having contacted you earlier.

3.   Please accept my sincere apologies.

4.   To any readers who feel hard done by or annoyed please accept my sincere apologies.

5.   We would like to offer our sincere apologies for the delay.

6.   Please accept my sincere apologies for my behaviour yesterday.

7.   Even after his violent outburst, he makes an apparently sincere apology.

8.   Declining the interview, and the book deal, would have been the only sincere apology.

9.   Friday Auriemma said he regretted making the comments and had called Inglese to offer his sincere apologies.

10.   He is welcome to work his way back into baseball after he makes sincere apologies to every group he offended and cleans up the zoo doo.