use Modern::Perl qw/2015/;
use Lingua::EN::Conjugate qw/conjugate/;

while ( my $verb = <DATA> ) {
    chomp $verb;
    for my $pronoun (qw/I you he we you they/) {
        say conjugate(
            verb               => $verb,
            pronoun            => $pronoun,
            allow_contractions => 1,
            tense              => 'present',
        );
    }
    say '---------------------';
}

__DATA__
walk
hear
be
have
go
try
sing
may

##</code><code>##

I walk
you walk
he walks
we walk
you walk
they walk
---------------------
I hear
you hear
he hears
we hear
you hear
they hear
---------------------
I'm
you're
he's
we're
you're
they're
---------------------
I've
you've
he's
we've
you've
they've
---------------------
I go
you go
he goes
we go
you go
they go
---------------------
I try
you try
he tries
we try
you try
they try
---------------------
I sing
you sing
he sings
we sing
you sing
they sing
---------------------
I may
you may
he may
we may
you may
they may
---------------------