求下列单词的过去式

问题描述:

求下列单词的过去式
stay,study,say,see,wait,visit,eat,wear,spend,improve,arrive,lie,give

stay=staied study=studied say=said see=saw wait=waited visit=visited eat=ate wear=weared spend=spended improve=improvedarrive=arrived ,lie=,lied give =gave