qsaclan2016
qsaclan2016 qsaclan2016
  • 22-09-2017
  • English
contestada

Which verb form is used to indicate the perfect progressive tense?

a. verb + -ed
b. be + verb + -ing
c. have + been + verb + -ing
d. have + verb + -ed

Respuesta :

Аноним Аноним
  • 22-09-2017
The answer would be 
D) have + verb + -ed
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