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