NAME
    "Lingua::EN::Infinitive" - Determine the infinitive form of a conjugated
    word

SYNOPSIS
            use Lingua::EN::Infinitive;

            my($spell) = Lingua::EN::Infinitive -> new();
            my($word)  = 'rove';

            # Method 1:
            my($word1, $word2, $suffix, $rule) = $spell -> stem($word);

            # Method 2:
            $spell -> stem($word);
            my($word1, $word2, $suffix, $rule) =
            (
                    $spell -> {'word1'},  # A possibility.
                    $spell -> {'word2'},  # A possibility, or ''.
                    $spell -> {'suffix'},
                    $spell -> {'rule'},
            );

            print "Conjugated: $word. Infinitive: $word1. \n";

DESCRIPTION
    Determine the infinitive form of a conjugated word. Also, determine the
    suffix used to identify which rule to apply to transform the conjugated
    word into the infinitive form.

    Either 1 or 2 possible infinitives are returned. You must check that the
    first is really an English word. If it is, then it is the result. If it
    is not valid, then check the second.

    Failure to deconjugate is indicated by $word1 eq ''.

    In general, you can ignore the 3rd and 4th values returned from stem().

    The algorithm is based on McIlroy's article (see below), after first
    checking for irregular words.

    In the hash 'suffix2Rule', you'll see the key 'order'. This specifies
    the sort order in which to check McIlroy's rules. I've changed his
    ordering in a number of places.

INSTALLATION
    You install "Lingua::EN::Infinitive", as you would install any perl
    module library, by running these commands:

            perl Makefile.PL
            make
            make test
            make install

    If you want to install a private copy of "Lingua::EN::Infinitive" in
    your home directory, then you should try to produce the initial Makefile
    with something like this command:

            perl Makefile.PL LIB=~/perl
                    or
            perl Makefile.PL LIB=C:/Perl/Site/Lib

    If, like me, you don't have permission to write man pages into unix
    system directories, use:

            make pure_install

    instead of make install. This option is secreted in the middle of p 414
    of the second edition of the dromedary book.

WARNING
    Don't make the false assumption that

            "$word1$suffix" eq $word
                    or
            "$word2$suffix" eq $word

REFERENCE
            Title:   Development of a Spelling List
            Author:  M. Douglas McIlroy
            Journal: IEEE Transactions on Communications
            Issue:   Vol COM-30, No 1, January 1982

AUTHOR
    "Lingua::EN::Infinitive" was written by Ron Savage *<ron@savage.net.au>*
    in 1998.

LICENCE
    Australian copyright (c) 1999-2002 Ron Savage.

            All Programs of mine are 'OSI Certified Open Source Software';
            you can redistribute them and/or modify them under the terms of
            The Artistic License, a copy of which is available at:
            http://www.opensource.org/licenses/index.html