use strict;    #a good habit to start your program with line
use warnings;  #another good habit too...

my @array1 = ("one", "two", "five");
my @array2 = ("three","four");

my @array3 = ("one","two",@array2,"five");
my @array4 = ("one","two",'@array2',"five");
my @array5 = ("one","two","@array2","five");
print "@array3\n";
print "@array4\n";
print "@array5\n";