holiday’s i was writing my moms a mother’s day card (using a cæesar cipher and invisible ink) when i got to wondering how mother’s day is supposed to be punctuated. is it: mother’s day (singular possessive)—a day that belongs to each mothermothers’ day (plural possessive)—a day that belongs to all mothersmothers day (plural attributive)—a day for all of us to honour mothersit turns out that anna j