How to dispay form in comment.php if user is not logged in

Hi there,
I think my question is quite simple, the answer though is beyond my knowledge.

How to include theme_my_login() just after “Il suffit de se connecter pour accéder au formulaire.”

<?php
	$aria_req = ( $req ? " aria-required='true'" : '' );
	$args = array(

  		'id_form'           => 'commentform',
  		'id_submit'         => 'submit',
  		'title_reply'       => __( '* Je peux apporter une solution' ),
  		'title_reply_to'    => __( 'Je peux répondre à %s' ),
  		'cancel_reply_link' => __( 'Cancel Reply' ),
  		'label_submit'      => __( 'Je partage!' ),

		'comment_field' =>  '<p class="comment-form-comment"><label for="comment">' . _x( 'Solution(s), critiques, témoignage:', 'noun' ) .
		'</label><textarea id="comment" name="comment" cols="45" rows="8" aria-required="true">' .
		'</textarea></p>',

  		'must_log_in' =>  '<p class="must-log-in">' .
    	sprintf(
      		__( 'Il suffit de <a href="%s">se connecter</a> pour accéder au formulaire.' ),
      		wp_login_url( apply_filters( 'the_permalink', get_permalink() ) )
    		) . '</p>',

  'logged_in_as' => '<p>' .
    sprintf(
    __( 'Connecté en tant que <a href="%1$s">%2$s</a>. <a href="%3$s" title="Log out of this account">Me déconnecter?</a>' ),
      admin_url( 'profile.php' ),
      $user_identity,
      wp_logout_url( apply_filters( 'the_permalink', get_permalink( ) ) )
    ) . '</p>',

  'comment_notes_before' => '<p class="comment-notes">' .
    __( 'Your email address will not be published.' ) . ( $req ? $required_text : '' ) .
    '</p>',
etc.

So far the following adaptation, is the closest I have to what I want but it displays the tml form wether the user is connected or not… not really what I am trying to do:

<?php
	$aria_req = ( $req ? " aria-required='true'" : '' );
	$args = array(

  		'id_form'           => 'commentform',
  		'id_submit'         => 'submit',
  		'title_reply'       => __( '* Je peux apporter une solution' ),
  		'title_reply_to'    => __( 'Je peux répondre à %s' ),
  		'cancel_reply_link' => __( 'Cancel Reply' ),
  		'label_submit'      => __( 'Je partage!' ),

		'comment_field' =>  '<p class="comment-form-comment"><label for="comment">' . _x( 'Solution(s), critiques, témoignage:', 'noun' ) .
		'</label><textarea id="comment" name="comment" cols="45" rows="8" aria-required="true">' .
		'</textarea></p>',

  		'must_log_in' =>  '<p class="must-log-in">' .
    	sprintf(
      		__( 'Il suffit de <a href="%s">se connecter</a> pour accéder au formulaire.' ),
      		wp_login_url( apply_filters( 'the_permalink', get_permalink() ) )
    		) . '</p><div="connectform">' .
		theme_my_login() . '</div>',

  'logged_in_as' => '<p>' .
    sprintf(
    __( 'Connecté en tant que <a href="%1$s">%2$s</a>. <a href="%3$s" title="Log out of this account">Me déconnecter?</a>' ),
      admin_url( 'profile.php' ),
      $user_identity,
      wp_logout_url( apply_filters( 'the_permalink', get_permalink( ) ) )
    ) . '</p>',

I hope somebody will be up to help me (and maybe others)
Many thanks in advance,
Yours Sincerely,
Tche

https://wordpress.org/plugins/theme-my-login/