not ... at all

お誕生日おめでとうございます: happy birthday

very, exceedingly, awfully / (before a negative form) not at all, at all, by no means

幾日も幾日も: day after day

the twentieth day of the month / twenty days / Short for 二十日鼠 (hatsuka nezumi): a house mouse

one day, 24 hours / the daytime, the period from dawn until dusk / (figuratively) a short period of time / one day, someday, an unspecified day / the first day of the month

regular day off (e.g. closed every Monday)

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend