Can not edit comment form

You can put this code in your current theme function.php file More Info

<?php

    add_action( 'comment_form_logged_in_after', 'additional_fields' );
    add_action( 'comment_form_after_fields', 'additional_fields' );
    
    function additional_fields () {
      echo '<p class="comment-form-title">'.
      '<label for="title">' . __( 'Comment Title' ) . '</label>'.
      '<input id="title" name="title" type="text" size="30"  tabindex="5" /></p>';
    }
?>

EDIT:

$comments_args = array(
       'comment_notes_after' => '<p><label for="comment">' . _x( 'NEW', 'noun' ) .
    '</label><input id="new" name="new" aria-required="true">' .
    '</input></p>',
    );

    comment_form($comments_args);

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