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gf-core/lib/resource/doc/gfdoc/Tense.html
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<TITLE> Tense, Polarity, and Anteriority</TITLE>
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<P ALIGN="center"><CENTER><H1> Tense, Polarity, and Anteriority</H1>
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<I>Last update: 2006-02-27 09:41:31 CET</I><BR>
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Produced by
gfdoc - a rudimentary GF document generator.
(c) Aarne Ranta (<A HREF="mailto:aarne@cs.chalmers.se">aarne@cs.chalmers.se</A>) 2002 under GNU GPL.
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This module defines the abstract parameters of tense, polarity, and
anteriority, which are used in <A HREF="Tensed.html">Tensed</A> to generate different
forms of sentences. Together they give 2 x 4 x 4 = 16 sentence forms.
These tenses are defined for all languages in the library. More tenses
can be defined in the language extensions, e.g. the <I>passé simple</I> of
Romance languages.
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<PRE>
abstract Tense = {
cat
Pol ;
Tense ;
Ant ;
fun
PPos, PNeg : Pol ; -- I sleep/don't sleep
TPres, TPast, TFut, TCond : Tense ; -- I sleep/slept/will sleep/would sleep
ASimul, AAnter : Ant ; -- I sleep/have slept
}
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