I've been collectivising you've been collectivising he's been collectivising we've been collectivising you've been collectivising they've been collectivising
I'd been collectivising you'd been collectivising he'd been collectivising we'd been collectivising you'd been collectivising they'd been collectivising
I'll be collectivising you'll be collectivising he'll be collectivising we'll be collectivising you'll be collectivising they'll be collectivising
Future perfect
I'll have collectivised you'll have collectivised he'll have collectivised we'll have collectivised you'll have collectivised they'll have collectivised
Future perfect continuous
I'll have been collectivising you'll have been collectivising he'll have been collectivising we'll have been collectivising you'll have been collectivising they'll have been collectivising
I'd be collectivising you'd be collectivising he'd be collectivising we'd be collectivising you'd be collectivising they'd be collectivising
Past
I'd have collectivised you'd have collectivised he'd have collectivised we'd have collectivised you'd have collectivised they'd have collectivised
Past continuous
I'd have been collectivising you'd have been collectivising he'd have been collectivising we'd have been collectivising you'd have been collectivising they'd have been collectivising