I undergo undergoed you undergo undergoed she undergo undergoed we undergo undergoed you undergo undergoed they undergo undergoed
Preterite continuous
I was undergo undergoing you were undergo undergoing she was undergo undergoing we were undergo undergoing you were undergo undergoing they were undergo undergoing
I've been undergo undergoing you've been undergo undergoing she's been undergo undergoing we've been undergo undergoing you've been undergo undergoing they've been undergo undergoing
I'd been undergo undergoing you'd been undergo undergoing she'd been undergo undergoing we'd been undergo undergoing you'd been undergo undergoing they'd been undergo undergoing
I'll be undergo undergoing you'll be undergo undergoing she'll be undergo undergoing we'll be undergo undergoing you'll be undergo undergoing they'll be undergo undergoing
Future perfect
I'll have undergo undergoed you'll have undergo undergoed she'll have undergo undergoed we'll have undergo undergoed you'll have undergo undergoed they'll have undergo undergoed
Future perfect continuous
I'll have been undergo undergoing you'll have been undergo undergoing she'll have been undergo undergoing we'll have been undergo undergoing you'll have been undergo undergoing they'll have been undergo undergoing
I'd be undergo undergoing you'd be undergo undergoing she'd be undergo undergoing we'd be undergo undergoing you'd be undergo undergoing they'd be undergo undergoing
Past
I'd have undergo undergoed you'd have undergo undergoed she'd have undergo undergoed we'd have undergo undergoed you'd have undergo undergoed they'd have undergo undergoed
Past continuous
I'd have been undergo undergoing you'd have been undergo undergoing she'd have been undergo undergoing we'd have been undergo undergoing you'd have been undergo undergoing they'd have been undergo undergoing