Send a form to twig template How I can pass a form to twig template in Drupal 8?

For example, I get this:

a form: mymodule/src/Form/MyForm.php

Then on my Controller:

public function myController() {

    ??????

    return [
        '#theme' =&gt; 'mytemplate',
        ??????
        ];
}


mytemplate.html.twig

{{ ????? }}
Well, I did it, for anyone that needs this:

public function pageAction() {
  $myform = \Drupal::formBuilder()-&gt;getForm('Drupal\[mymodule]\Form\[myformclass]');
  // If you want modify the form:
  $myform['field']['#value'] = 'From my controller';

  $build = [
    '#theme' =&gt; 'mytemplate'
    '#form' =&gt; $myform,
  ];
}


In twig:

{{ form }}