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  2. Past perfect (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Past_perfect_(disambiguation)

    Past perfect is a verb tense which represents actions that occurred before other actions in the past. Past perfect may also refer to: Past Perfect, a 1984 novel by Yaakov Shabtai; Pastperfect, a 2004 DVD by VNV Nation; Past Perfect Future Tense, an album by Magne F; Past Perfect, an Italian film; Past Perfect, an action-science fiction film ...

  3. Perfect (grammar) - Wikipedia

    en.wikipedia.org/wiki/Perfect_(grammar)

    Resultative perfect (referring to a state in the present which is the result or endpoint of an event in the past): "I have lost my pen-knife" (message: I still don't have it) Continuative perfect (past situations continuing into present): "I have always guided him" Anterior perfect (completed past situations, but with relevance to the present):

  4. English grammar - Wikipedia

    en.wikipedia.org/wiki/English_grammar

    Regular verbs have identical past tense and past participle forms in -ed, but there are 100 or so irregular English verbs with different forms (see list). The verbs have, do and say also have irregular third-person present tense forms (has, does /dʌz/, says /sɛz/).

  5. PastPerfect Museum Software - Wikipedia

    en.wikipedia.org/wiki/PastPerfect_Museum_Software

    PastPerfect Museum Software is an application for collections archiving. It is designed for museums, but may be used by various institutions including libraries, archives, and natural history collections.

  6. Hyperinflation - Wikipedia

    en.wikipedia.org/wiki/Hyperinflation

    100 quintillion (10 20) pengő, the largest denomination bill ever issued, Hungary, 1946. 1 sextillion pengő notes were printed, but never issued. Hyperinflation in Venezuela represented by the time it would take for money to lose 90% of its value (301-day rolling average, inverted logarithmic scale)

  7. Perfect number - Wikipedia

    en.wikipedia.org/wiki/Perfect_number

    In number theory, a perfect number is a positive integer that is equal to the sum of its positive proper divisors, that is, divisors excluding the number itself. [1] For instance, 6 has proper divisors 1, 2 and 3, and 1 + 2 + 3 = 6, so 6 is a perfect number. The next perfect number is 28, since 1 + 2 + 4 + 7 + 14 = 28.

  8. Expected value of perfect information - Wikipedia

    en.wikipedia.org/wiki/Expected_value_of_perfect...

    The expected value of perfect information is the difference between these two quantities, EVPI = EV | PI − EMV . {\displaystyle {\mbox{EVPI}}={\mbox{EV}}|{\mbox{PI}}-{\mbox{EMV}}.} This difference describes, in expectation, how much larger a value the player can hope to obtain by knowing j and picking the best i for that j , as compared to ...

  9. Past Perfect (2003 film) - Wikipedia

    en.wikipedia.org/wiki/Past_Perfect_(2003_film)

    Past Perfect (Italian: Passato prossimo) is a 2003 Italian comedy film directed by Maria Sole Tognazzi. It was entered into the 25th Moscow International Film Festival . [ 1 ]