You will find the template in plugin/woocommerce/templates/my-account/form-login.php and there are following hooks on there.
- At the beginning of the form : woocommerce_register_form_start
- Before the register button : woocommerce_register_form
- Adding something after the register button: woocommerce_register_form_end
add_action(‘woocommerce_register_form_start’, ‘anis_add_something_beginning_form’);
function anis_add_something_beginning_form(){
woocommerce_form_field( 'country_to_visit', array( 'type' => 'text', 'required' => true, // just adds an "*" 'label' => 'Country you want to visit the most' ), ( isset($_POST['country_to_visit']) ? $_POST['country_to_visit'] : '' ) );
}