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Zoltán Király Posted 10 years ago
Grammar

Is "have" act as a helping/auxiliary verb in this sentence

Is the word "have" act as a helping/auxiliary verb in this sentence: "I shouldn't have come"?
  

Top answer

Yes. should is a modal auxiliary verb and it must be followed by an infinitive. In English, there are two active infinitives and two passive infinitives.

  • Yes.
  • should is a modal auxiliary verb and it must be followed by an infinitive.
  • In English, there are two active infinitives and two passive infinitives.
  • Have come is an active perfect infinitive, consisting of the auxiliary verb have and the past participle come .
  • CB
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2 Answers
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Yes. should is a modal auxiliary verb and it must be followed by an infinitive. In English, there are two active infinitives and two passive infinitives. Have come is an active perfect infinitive, consisting of the auxiliary verb have and the past participle come.

CB
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Some sources call this the "modal perfect" and associate the auxiliaries as a verbal phrase. [Modal verb + have] + past participle
This follows the labeling pattern of the perfect tenses.

The perfect infinitive is the infinitive marker (to) + have + past participle.

To have loved and lost is better than never to have loved at all.
He was sorry to have b

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