private function formatSimple(\DateInterval $diff)
    {
        $str = '';
        $pre = '';
        if ($diff->y > 0 || $diff->m > 0 || $diff->d == 1 || $diff->h == 1) {
            return $this->formatNormal($diff);
        } else if ($diff->d > 0) {
            $str = "few days";
        } else if ($diff->h > 0) {
            $str = "few hours";
        } else if ($diff->i < 2) {
            $str = "minute";
            $pre = "a ";
        } else if ($diff->i < 20) {
            $str = "15 minutes";
        } else if ($diff->i < 40) {
            $str = "half hour";
        } else if ($diff->i < 60) {
            $str = "hour";
            $pre = "an ";
        }

        return $this->translator->trans($diff->invert ? "next " . $str : $pre . $str . " ago");
    }