I'd be fastening you'd be fastening he'd be fastening we'd be fastening you'd be fastening they'd be fastening
Perfect
I would've fastened you would've fastened he would've fastened we would've fastened you would've fastened they would've fastened
V-ing perfect
I would've been fastening you would've been fastening he would've been fastening we would've been fastening you would've been fastening they would've been fastening
Negation
Simple form
I wouldn't fasten you wouldn't fasten he wouldn't fasten we wouldn't fasten you wouldn't fasten they wouldn't fasten
V-ing form
I wouldn't be fastening you wouldn't be fastening he wouldn't be fastening we wouldn't be fastening you wouldn't be fastening they wouldn't be fastening
Perfect
I wouldn't have fastened you wouldn't have fastened he wouldn't have fastened we wouldn't have fastened you wouldn't have fastened they wouldn't have fastened
V-ing perfect
I wouldn't have been fastening you wouldn't have been fastening he wouldn't have been fastening we wouldn't have been fastening you wouldn't have been fastening they wouldn't have been fastening
Interrogative form
Simple form
would I fasten? would you fasten? would he fasten? would we fasten? would you fasten? would they fasten?
V-ing form
would I be fastening? would you be fastening? would he be fastening? would we be fastening? would you be fastening? would they be fastening?
Perfect
would I have fastened? would you have fastened? would he have fastened? would we have fastened? would you have fastened? would they have fastened?
V-ing perfect
would I have been fastening? would you have been fastening? would he have been fastening? would we have been fastening? would you have been fastening? would they have been fastening?
Interro-negative form
Simple form
wouldn't I fasten? wouldn't you fasten? wouldn't he fasten? wouldn't we fasten? wouldn't you fasten? wouldn't they fasten?
V-ing form
wouldn't I be fastening? wouldn't you be fastening? wouldn't he be fastening? wouldn't we be fastening? wouldn't you be fastening? wouldn't they be fastening?
Perfect
wouldn't I have fastened? wouldn't you have fastened? wouldn't he have fastened? wouldn't we have fastened? wouldn't you have fastened? wouldn't they have fastened?
V-ing perfect
wouldn't I have been fastening? wouldn't you have been fastening? wouldn't he have been fastening? wouldn't we have been fastening? wouldn't you have been fastening? wouldn't they have been fastening?