凭海而居
1.一般现在时:主语+do/doese.gWecleantheroomeveryday.2.一般过去时:主语+dide.gWecleanedtheroomjustnow.3.现在进行时:主语+am/is/aredoinge.gWearecleaningtheroomnow.4.过去进行时:was/weredoinge.gWewerecheaningtheroomat5:00yesterdayafternoon.5.现在完成时:have/hasdonee.gWehavecleanedtheroomalready.6.过去完成时:haddonee.gWehadcleanedtheroombeforehearrived.7.一般将来时:willdo/e.gWewillcleantheroomtomorrow.8.过去将来时:was/wereto/woulddoe.gHesaidhewouldcleantheroomnext.
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