past perfect continuous.

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Определение past perfect continuous. в Английский Язык Английский Язык словарь

past perfect progressive

A tense that expresses an unbroken action continuing up to a certain time in the past. In English it is formed by using had been with a present participle

Example: She had been living in England for three years before moving to Sweden.

Расстановка переносов

past per·fect con·ti·nu·ous