Add Button In Admin Form Magento 2

Add Button In Admin Form Magento 2 : if you want to add a button in admin form. here is a way you can do it. please check below code.

$fieldset->addField(
    'phone_number',
    'text',
    [
        'label' => __('Phone Number'),
        'title' => __('Phone Number'),
        'name' => 'phone_number',
        'after_element_html' => '<button class="primary" type="button">Verify</button>'
    ]
);

It will look like this. Check the below screenshot.

I hope it will help you 😃.