形态 时间 一般 进行 完成 现在 am/is/are cleaned am/is/are being cleaned have/has been cleaned 形态 时间 一般 进行 完成 过去 was/were cleaned was/were being cleaned had been cleaned 将来 shall/will be cleaned shall/will have been cleaned 过去将来 should/would be cleaned [典题精选] [我来改正] [常设误点] [典题精选] [我来改正] [常设误点] 情况 变化规则 例词 一般情况 直接加s work—works learn—learns come—comes
play—plays want—wants
need—needs 情况 变化规则 例词 结尾为s，x，sh，ch或o 在词尾加es pass—passes discuss—discusses teach—teaches wash—washes fix—fixes go—goes 结尾为“辅音字母＋y” 变y为i再加es carry—carries
cry—cries study—studies worry—worries 情况 变化规则 例词 一般情况 在动词后加ed look—looked watch—watched stay—stayed
expect—expected 以e结尾的动词 后加d hope—hoped like—liked 情况 变化规则 例词 以“辅音字母＋y”结尾的动词 变y为i再加ed study—studied try—tried copy—copied
carry—carried 以重读闭音节或/r/音节结尾，词尾只有一个辅音字母时 双写词尾的辅音字母再加ed stop—stopped clap—clapped plan—planned
prefer—preferred admit—admitted permit—permitted 情况 变化规则 例词 一般情况 在词尾直接加ing work—working look—looking study—studying 以不发音的e结尾的动词 去e再加ing have—having face—facing take—taking
write—writing 情况 变化规则 例词 以重读闭音节结尾，且末尾只有一个辅音字母 双写该辅音字母再加ing cut—cutting put—putting swim—swimming begin—beginning 以ie结尾的动词 变ie为y再加ing lie—lying tie—tying die—dying