I've been approximating you've been approximating he's been approximating we've been approximating you've been approximating they've been approximating
I'll be approximating you'll be approximating he'll be approximating we'll be approximating you'll be approximating they'll be approximating
Futuro perfecto
I'll have approximated you'll have approximated he'll have approximated we'll have approximated you'll have approximated they'll have approximated
Futuro perfecto contínuo
I'll have been approximating you'll have been approximating he'll have been approximating we'll have been approximating you'll have been approximating they'll have been approximating
I'd be approximating you'd be approximating he'd be approximating we'd be approximating you'd be approximating they'd be approximating
Passado
I'd have approximated you'd have approximated he'd have approximated we'd have approximated you'd have approximated they'd have approximated
Passado continuo
I'd have been approximating you'd have been approximating he'd have been approximating we'd have been approximating you'd have been approximating they'd have been approximating