小学到初一英语语法要点,词性转换答:变f或fe为v, 再加-es,如:knife-knives 5.不规则名词复数: man-men, woman-women, policeman-policemen, policewoman-policewomen, mouse-mice child-children foot-feet,.tooth-teeth fish-fish, people-people, Chinese-Chinese, Japanese-Japanese Be 动词的用法: (1) Am--was Is --...