1)一般+s 2)s,x,sh,ch,o结尾的,加es:fix—fixes ,pass—passes,watch—watches,wash—washes,go —goes
3)以辅音字母y结尾的,要把y变成i再加es:study—studies,carry—carries,worry—worries 4))以fe结尾的,要把fe改成ves:knife-knives
1)一般+s 2)s,x,sh,ch,o结尾的,加es:fix—fixes ,pass—passes,watch—watches,wash—washes,go —goes
3)以辅音字母y结尾的,要把y变成i再加es:study—studies,carry—carries,worry—worries 4))以fe结尾的,要把fe改成ves:knife-knives