Modifyng the slug

Good mornig!
i’ve got a site with polylang plugin for the translation, and my problem is with the url.
I have this two urls:
-en/portfolio-view/example1231/
-portfolio-view/example1232/

and i want
-en/our-company/references/example1231
-nuestra-compania/referencias/example1232

There are different portfolios with different urls, but when i try to modify the url in the slug configuration it change for the both.

i’ve got this code on my theme-init:

function my_post_type_portfolio() {
	register_post_type( 'portfolio',
					array(
					'label' => __("Solutions", CURRENT_THEME),
					'singular_label' => __("Solution Item", CURRENT_THEME),
					'_builtin' => false,
					'public' => true,
					'show_ui' => true,
					'show_in_nav_menus' => true,
					'hierarchical' => true,
					'capability_type' => 'page',
					'menu_icon' => get_template_directory_uri() . '/includes/images/icon_portfolio.png',
					'rewrite' => array(
						'slug' => 'portfolio-view',
						'with_front' => FALSE,
					),

					'supports' => array(
							'title',
							'editor',
							'thumbnail',
							'excerpt',
							'custom-fields',
							'comments')
						)
					);

	register_taxonomy('portfolio_category', 'portfolio', array('hierarchical' => true, 'label' => theme_locals("categories"), 'singular_name' => theme_locals("category"), "rewrite" => true, "query_var" => true));
	register_taxonomy('portfolio_tag', 'portfolio', array('hierarchical' => false, 'label' => theme_locals("tags"), 'singular_name' => theme_locals("tag"), 'rewrite' => true, 'query_var' => true));
}