Men, foxes, knives, geese, teeth, scarves, women, children, feet, mice, passer-bies, brothers-in-law, potatoes, pennies, boxes, brushes, pianoes, zoo, mothers-in-law, men-driver
те, которые не написаны, просто в конце добавляешь "S"
№3
bases, nucleuses/nuclei, mediums, formulas/formulae, phenomena, criteria, crises, beaches, xerox, matches, cities, roofs, chieves, shelves, toys, boxes, leaves, factories, libraries, flies, genies, diagnoses, theses, cactuses/cacti, centres, oxen, series, antennas/antennae, curriculums, healthes, polices, datums, axes, species, phenomena, knives, tomatoes, women, genii
там где разделительная черта, правильны оба варианта, в зависимости от значения слова.