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