I've been differentiating you've been differentiating she's been differentiating we've been differentiating you've been differentiating they've been differentiating
I'd been differentiating you'd been differentiating she'd been differentiating we'd been differentiating you'd been differentiating they'd been differentiating
I'll be differentiating you'll be differentiating she'll be differentiating we'll be differentiating you'll be differentiating they'll be differentiating
Futuro anteriore
I'll have differentiated you'll have differentiated she'll have differentiated we'll have differentiated you'll have differentiated they'll have differentiated
Futuro anteriore contínuo
I'll have been differentiating you'll have been differentiating she'll have been differentiating we'll have been differentiating you'll have been differentiating they'll have been differentiating
I'd be differentiating you'd be differentiating she'd be differentiating we'd be differentiating you'd be differentiating they'd be differentiating
Passato
I'd have differentiated you'd have differentiated she'd have differentiated we'd have differentiated you'd have differentiated they'd have differentiated
Passato continuo
I'd have been differentiating you'd have been differentiating she'd have been differentiating we'd have been differentiating you'd have been differentiating they'd have been differentiating