I'll be fastening you'll be fastening she'll be fastening we'll be fastening you'll be fastening they'll be fastening
Futur antérieur
I'll have fastened you'll have fastened she'll have fastened we'll have fastened you'll have fastened they'll have fastened
Futur antérieur continu
I'll have been fastening you'll have been fastening she'll have been fastening we'll have been fastening you'll have been fastening they'll have been fastening
I'd be fastening you'd be fastening she'd be fastening we'd be fastening you'd be fastening they'd be fastening
Passé
I'd have fastened you'd have fastened she'd have fastened we'd have fastened you'd have fastened they'd have fastened
Passé continu
I'd have been fastening you'd have been fastening she'd have been fastening we'd have been fastening you'd have been fastening they'd have been fastening