run ran run talk talked talked speak spoke spoken listen ~ed ~ed play ~ed `~ed look ~ed ~ed think thought thought break broke broken go went gone find found found study studied studied read~ ~ climb climbed climbed sit sat sit take took taken see saw seen begin began begun carry carried carried be (was/were)been do did done
ran running runs talked talking talks spoke speaks speaking listened listening listens played playing plays looked looking looks thought thinking thinks broke breaking breaks went going goes found finding finds studied studying sdudies read reading reads climbed climbing climbs sat sitting sits took taking takes saw seeing sees began beginning begins carried carrying carries be 没有单三 been being did doing does
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