急！！求visit,arrive,try,prefer,cost,leave,see,drive,help,save,stop,give,hold,know,feed,write的过去式和过去分词，求

急！！求visit,arrive,try,prefer,cost,leave,see,drive,help,save,stop,give,hold,know,feed,write的过去式和过去分词，再求rain,write,prefer,try,go,stop,see,run的第三人称单数形式和现在分词形式！！！

visited visited tried tried preferred preferred cost cost left left saw seen drove driven helped helped saved saved stopped stopped gave given held held knew hnown fed fed wrote writen

rains raining writes writing prefers preferring tries trying goes going stops stopping sees seeing runs running

visit-visited -visited; arrive-arrived-arrived;try-tried-tried;prefer--preferred-preferred;cost-cost-cost;

leave-left-left;see-saw-seen;drive-drove-driven;help-helped-helped;save-saved-saved;

stop-stopped-stopped;hold-held-held;know-knew-known;feed-fed-fed;write-wrote-written

rain-rains-raining;write-writes-writing;prefer-prefers-(无现在分词形式）；try-tries-trying;go-goes-going;

stop-stops-(无现在分词形式） see-sees-seeing run-runs-running

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