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Selasa, 05 April 2011

Future Perfect Continuous Tense

Future Perfect Continuous has two different forms: "will have been doing " and "be going to have been doing." Unlike Simple Future forms, Future Perfect Continuous forms are usually interchangeable.

FORM Future Perfect Continuous with "Will"

[will have been + present participle]
Examples:
  • You will have been waiting for more than two hours when her plane finally arrives.
  • Will you have been waiting for more than two hours when her plane finally arrives?
  • You will not have been waiting for more than two hours when her plane finally arrives.

FORM Future Perfect Continuous with "Be Going To"

[am/is/are + going to have been + present participle]
Examples:
  • You are going to have been waiting for more than two hours when her plane finally arrives.
  • Are you going to have been waiting for more than two hours when her plane finally arrives?
  • You are not going to have been waiting for more than two hours when her plane finally arrives.
copied from: english page

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