动词过去式变化规则

动词过去式变化规则：1．一般在动词末尾加-ed，如：pull-pulled,cook-cooked2．结尾是e加d，如：taste-tasted3．末尾只有一个元音字母和一个辅音字母的重读闭音节，应双写末尾的辅音字母，再加-ed，如：stop-stopped4．以“辅音字母+y”结尾的，变y为i，再加-ed，如：study-studied5．不规则动词过去式：am,is-wasare-weredo-didsee-sawsay-saidgive-gaveget-gotgo-wentcome-camehave-hadeat-atetake-tookrun-ransing-sangput-putmake-maderead-readwrite-wrotedraw-drewdrink-drankfly-flewride-rodespeak-spokesweep-sweptswim-swamsit-sat