costting 、cutting、letting、putting、reading、buliting`````反正就是这样 ,不确定.
A B C think thought thought bring brought brought buy bought bought fight fought fought catch caught caught teach taught taught hear heard heard keep kept kept oversleep
规则动词的过去式变化如下: 一般情况下,动词词尾加 -ed ,如: worked played wanted acted 以不发音的 -e 结尾动词,动词词尾加 -d,如: lived moved decided declined hoped judged raised wiped 以辅音字母 + y结尾的动词,把-y变为-i 再加
awake 叫醒 awaking be 是 being bear 负担,承担 bearingbeat 打败 beating become 成为 变成 becoming begin 开始 beginning bet 打赌 betting blow 吹break打破bring 带(来)build搭建burn出生buy买catch抓住choo
baby-sit充任临时保姆 baby-sat baby-sat be(am/is/are)是 was/were been beat 击打 beat beaten become 变成 became become begin 开始 began begun bend 使弯曲 bent bent bet 赌 bet bet bite
原形 过去式 过去分词 baby-sit临时照顾 baby-sat baby-sat be(am/is/are)是 was/were been beat 击打 beat beaten become 变成 became become begin 开始 began begun bend 使弯曲 bent bent bet 赌 bet
drink---drank----drunk ring----rang-----rung swim----swam----swum sing----sang----sung 游泳 drink drank drunk 饮 (4)其他不规则动词的变化. be(am, is) was/ were been