English verb 'to introduce' in past perfect continuous - regular verbs conjugation

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término English definición English
I [to introduce]
1st person singular, pluperfect continuous, indicative
empezar lección
I had been introducing
you [to introduce]
2nd person singular, pluperfect continuous, indicative
empezar lección
you had been introducing
he [to introduce]
3rd person singular, pluperfect continuous, indicative
empezar lección
he had been introducing
she [to introduce]
3rd person singular, pluperfect continuous, indicative
empezar lección
she had been introducing
it [to introduce]
3rd person singular, pluperfect continuous, indicative
empezar lección
it had been introducing
we [to introduce]
1st person plural, pluperfect continuous, indicative
empezar lección
we had been introducing
you [to introduce]
2nd person plural, pluperfect continuous, indicative
empezar lección
you had been introducing
they [to introduce]
3rd person plural, pluperfect continuous, indicative
empezar lección
they had been introducing

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