I've been subspecialising you've been subspecialising he's been subspecialising we've been subspecialising you've been subspecialising they've been subspecialising
I'd been subspecialising you'd been subspecialising he'd been subspecialising we'd been subspecialising you'd been subspecialising they'd been subspecialising
I'll be subspecialising you'll be subspecialising he'll be subspecialising we'll be subspecialising you'll be subspecialising they'll be subspecialising
Futuro anteriore
I'll have subspecialised you'll have subspecialised he'll have subspecialised we'll have subspecialised you'll have subspecialised they'll have subspecialised
Futuro anteriore contínuo
I'll have been subspecialising you'll have been subspecialising he'll have been subspecialising we'll have been subspecialising you'll have been subspecialising they'll have been subspecialising
I'd be subspecialising you'd be subspecialising he'd be subspecialising we'd be subspecialising you'd be subspecialising they'd be subspecialising
Passato
I'd have subspecialised you'd have subspecialised he'd have subspecialised we'd have subspecialised you'd have subspecialised they'd have subspecialised
Passato continuo
I'd have been subspecialising you'd have been subspecialising he'd have been subspecialising we'd have been subspecialising you'd have been subspecialising they'd have been subspecialising