I crumple crumpled you crumple crumpled he crumple crumpled we crumple crumpled you crumple crumpled they crumple crumpled
Preterite continuous
I was crumple crumpling you were crumple crumpling he was crumple crumpling we were crumple crumpling you were crumple crumpling they were crumple crumpling
I've been crumple crumpling you've been crumple crumpling he's been crumple crumpling we've been crumple crumpling you've been crumple crumpling they've been crumple crumpling
I'd been crumple crumpling you'd been crumple crumpling he'd been crumple crumpling we'd been crumple crumpling you'd been crumple crumpling they'd been crumple crumpling
I'll be crumple crumpling you'll be crumple crumpling he'll be crumple crumpling we'll be crumple crumpling you'll be crumple crumpling they'll be crumple crumpling
Future perfect
I'll have crumple crumpled you'll have crumple crumpled he'll have crumple crumpled we'll have crumple crumpled you'll have crumple crumpled they'll have crumple crumpled
Future perfect continuous
I'll have been crumple crumpling you'll have been crumple crumpling he'll have been crumple crumpling we'll have been crumple crumpling you'll have been crumple crumpling they'll have been crumple crumpling
I'd be crumple crumpling you'd be crumple crumpling he'd be crumple crumpling we'd be crumple crumpling you'd be crumple crumpling they'd be crumple crumpling
Past
I'd have crumple crumpled you'd have crumple crumpled he'd have crumple crumpled we'd have crumple crumpled you'd have crumple crumpled they'd have crumple crumpled
Past continuous
I'd have been crumple crumpling you'd have been crumple crumpling he'd have been crumple crumpling we'd have been crumple crumpling you'd have been crumple crumpling they'd have been crumple crumpling