I'll be weakening you'll be weakening he'll be weakening we'll be weakening you'll be weakening they'll be weakening
Futuro perfecto
I'll have weakened you'll have weakened he'll have weakened we'll have weakened you'll have weakened they'll have weakened
Futuro perfecto contínuo
I'll have been weakening you'll have been weakening he'll have been weakening we'll have been weakening you'll have been weakening they'll have been weakening
I'd be weakening you'd be weakening he'd be weakening we'd be weakening you'd be weakening they'd be weakening
Passado
I'd have weakened you'd have weakened he'd have weakened we'd have weakened you'd have weakened they'd have weakened
Passado continuo
I'd have been weakening you'd have been weakening he'd have been weakening we'd have been weakening you'd have been weakening they'd have been weakening