过去式有什么规律?

规则动词的过去式由“动词原形+-ed”构成,具体变化有：1.直接在词尾加-ed.如:want—wanted,work—worked,need—needed,clean—cleaned2.以不发音的e结尾的在词尾加-d.如：like—liked,live—lived,use—used,move—m...