英语什么是名词,什么是副词什么是规则和不规则?什么是足语,宾语,谓语...答:it it its its this that itself复数they them their theirs these those themselves3、动词A) 第三人称单数当动词是第三人称单数时,动词应该像名词的单数变动词那样加s,如下:一)一般在词后加s。如:comes, spells, waits, talks, sees, dances, trains二)在x, sh, ch, s, tch后加es。如:watches, ...