I've been think backing you've been think backing he's been think backing we've been think backing you've been think backing they've been think backing
I'd been think backing you'd been think backing he'd been think backing we'd been think backing you'd been think backing they'd been think backing
Futuro simple
I'll think back you'll think back he'll think back we'll think back you'll think back they'll think back
Futuro continuo
I'll be think backing you'll be think backing he'll be think backing we'll be think backing you'll be think backing they'll be think backing
Futuro perfecto
I'll have think backed you'll have think backed he'll have think backed we'll have think backed you'll have think backed they'll have think backed
Futuro perfecto contínuo
I'll have been think backing you'll have been think backing he'll have been think backing we'll have been think backing you'll have been think backing they'll have been think backing
Condicional
Presente
I'd think back you'd think back he'd think back we'd think back you'd think back they'd think back
Presente continuo
I'd be think backing you'd be think backing he'd be think backing we'd be think backing you'd be think backing they'd be think backing
Passado
I'd have think backed you'd have think backed he'd have think backed we'd have think backed you'd have think backed they'd have think backed
Passado continuo
I'd have been think backing you'd have been think backing he'd have been think backing we'd have been think backing you'd have been think backing they'd have been think backing