Yii 2.0如何在没有 的情况下生成表单？

<?php $form = ActiveForm::begin(['id' => 'contact-form']); ?>
        <?= $form->field($model, 'email',  [
                'inputOptions' => [ 'placeholder' => 'Ihre E-Mail Adresse', 'class' => 'newsletter-cta-mail' ]
        ])->label(false)->textInput(); ?>
        <?= Html::submitButton('20€ Gutschein sichern', ['class' => 'green newsletter-cta-button', 'name' => 'contact-button', 'value' => 'hallo']) ?>
<?php ActiveForm::end(); ?>
<?php $form = ActiveForm::begin(['id' => 'conta