I'll be alternating you'll be alternating he'll be alternating we'll be alternating you'll be alternating they'll be alternating
Futuro anteriore
I'll have alternated you'll have alternated he'll have alternated we'll have alternated you'll have alternated they'll have alternated
Futuro anteriore contínuo
I'll have been alternating you'll have been alternating he'll have been alternating we'll have been alternating you'll have been alternating they'll have been alternating
I'd be alternating you'd be alternating he'd be alternating we'd be alternating you'd be alternating they'd be alternating
Passato
I'd have alternated you'd have alternated he'd have alternated we'd have alternated you'd have alternated they'd have alternated
Passato continuo
I'd have been alternating you'd have been alternating he'd have been alternating we'd have been alternating you'd have been alternating they'd have been alternating