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The imperfect is a verb form, found in various languages, which combines past tense (reference to a past time) and imperfective aspect (reference to a continuing or repeated event or state). It can therefore have meanings similar to the English "was walking" or "used to walk." It contrasts with preterite forms, which refer to a single completed event in the past. Traditionally, the imperfect of languages such as Latin and French is referred to as one of the tenses, although in fact it encodes aspectual information in addition to tense (time reference). It may be more precisely called ''past imperfective''.〔Bernard Comrie, ''Tense'', 1985, pp. 6-7.〕 When used in relation to English, "imperfect" refers to forms much more commonly called ''past progressive'' or ''past continuous'' (like ''was doing'' or ''were doing''). These are combinations of past tense with specifically continuous or progressive aspect. The term can take on specific conventional meanings in the grammars of particular languages. In German, ''Imperfekt'' was used to refer to the simply conjugated past tense (to contrast with the ''Perfekt'' or compound past form), but the term ''Präteritum'' (preterite) is now preferred, since the form does not carry any implication of imperfective aspect. "Imperfect" comes from the Latin ラテン語:''imperfectus'' "unfinished", because the imperfect expresses an ongoing, uncompleted action. The equivalent Ancient Greek term was ''paratatikós'' "prolonged". ==Indo-European languages == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Imperfect」の詳細全文を読む スポンサード リンク
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