"May I wish you a happy birthday."
(お誕生日おめでとうございます。)
解説
"May I wish you a happy birthday. I'd like to wish you many returns of the day! Have a happy birthday!"（お誕生日おめでとうございます。幸せなお誕生日がいつまでも巡り来ますようにお祈りします。どうぞよいお誕生日を！） "Let me wish you many happy returns of the day."
