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Futur perfekt
I'll have certified you'll have certified he'll have certified we'll have certified you'll have certified they'll have certified
Futur perfekt kontinuierlich
I'll have been certifying you'll have been certifying he'll have been certifying we'll have been certifying you'll have been certifying they'll have been certifying
I'd be certifying you'd be certifying he'd be certifying we'd be certifying you'd be certifying they'd be certifying
Perfekt
I'd have certified you'd have certified he'd have certified we'd have certified you'd have certified they'd have certified
Perfekt kontinuierlich
I'd have been certifying you'd have been certifying he'd have been certifying we'd have been certifying you'd have been certifying they'd have been certifying