I'll be thumbtacking you'll be thumbtacking he'll be thumbtacking we'll be thumbtacking you'll be thumbtacking they'll be thumbtacking
Future perfect
I'll have thumbtacked you'll have thumbtacked he'll have thumbtacked we'll have thumbtacked you'll have thumbtacked they'll have thumbtacked
Future perfect continuous
I'll have been thumbtacking you'll have been thumbtacking he'll have been thumbtacking we'll have been thumbtacking you'll have been thumbtacking they'll have been thumbtacking
I'd be thumbtacking you'd be thumbtacking he'd be thumbtacking we'd be thumbtacking you'd be thumbtacking they'd be thumbtacking
Past
I'd have thumbtacked you'd have thumbtacked he'd have thumbtacked we'd have thumbtacked you'd have thumbtacked they'd have thumbtacked
Past continuous
I'd have been thumbtacking you'd have been thumbtacking he'd have been thumbtacking we'd have been thumbtacking you'd have been thumbtacking they'd have been thumbtacking