I'll be skittering you'll be skittering she'll be skittering we'll be skittering you'll be skittering they'll be skittering
Future perfect
I'll have skittered you'll have skittered she'll have skittered we'll have skittered you'll have skittered they'll have skittered
Future perfect continuous
I'll have been skittering you'll have been skittering she'll have been skittering we'll have been skittering you'll have been skittering they'll have been skittering
I'd be skittering you'd be skittering she'd be skittering we'd be skittering you'd be skittering they'd be skittering
Past
I'd have skittered you'd have skittered she'd have skittered we'd have skittered you'd have skittered they'd have skittered
Past continuous
I'd have been skittering you'd have been skittering she'd have been skittering we'd have been skittering you'd have been skittering they'd have been skittering