noun
[ sing. ] ( grammar ) the rules according to which the tense of a subordinate clause depends on the tense of a main clause, so that, for example, ' I think that you are wrong ' becomes ' I thought that you were wrong ' in the past tense
noun
[ sing. ] ( grammar ) the rules according to which the tense of a subordinate clause depends on the tense of a main clause, so that, for example, ' I think that you are wrong ' becomes ' I thought that you were wrong ' in the past tense
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005