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

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

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