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
Futur
I'll think back you'll think back he'll think back we'll think back you'll think back they'll think back
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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
Futur antérieur
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
Futur antérieur continu
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
Conditionnel
Présent
I'd think back you'd think back he'd think back we'd think back you'd think back they'd think back
Présent continu
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
Passé
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
Passé continu
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