I'll be enthusiasming you'll be enthusiasming he'll be enthusiasming we'll be enthusiasming you'll be enthusiasming they'll be enthusiasming
Perfect
I'll have enthusiasmed you'll have enthusiasmed he'll have enthusiasmed we'll have enthusiasmed you'll have enthusiasmed they'll have enthusiasmed
V-ing perfect
I'll have been enthusiasming you'll have been enthusiasming he'll have been enthusiasming we'll have been enthusiasming you'll have been enthusiasming they'll have been enthusiasming
Negation
Simple form
I shan't enthusiasm you shan't enthusiasm he shan't enthusiasm we shan't enthusiasm you shan't enthusiasm they shan't enthusiasm
V-ing form
I shan't be enthusiasming you shan't be enthusiasming he shan't be enthusiasming we shan't be enthusiasming you shan't be enthusiasming they shan't be enthusiasming
Perfect
I shan't have enthusiasmed you shan't have enthusiasmed he shan't have enthusiasmed we shan't have enthusiasmed you shan't have enthusiasmed they shan't have enthusiasmed
V-ing perfect
I shan't have been enthusiasming you shan't have been enthusiasming he shan't have been enthusiasming we shan't have been enthusiasming you shan't have been enthusiasming they shan't have been enthusiasming
Interrogative form
Simple form
shall I enthusiasm? shall you enthusiasm? shall he enthusiasm? shall we enthusiasm? shall you enthusiasm? shall they enthusiasm?
V-ing form
shall I be enthusiasming? shall you be enthusiasming? shall he be enthusiasming? shall we be enthusiasming? shall you be enthusiasming? shall they be enthusiasming?
Perfect
shall I have enthusiasmed? shall you have enthusiasmed? shall he have enthusiasmed? shall we have enthusiasmed? shall you have enthusiasmed? shall they have enthusiasmed?
V-ing perfect
shall I have been enthusiasming? shall you have been enthusiasming? shall he have been enthusiasming? shall we have been enthusiasming? shall you have been enthusiasming? shall they have been enthusiasming?
Interro-negative form
Simple form
shan't I enthusiasm? shan't you enthusiasm? shan't he enthusiasm? shan't we enthusiasm? shan't you enthusiasm? shan't they enthusiasm?
V-ing form
shan't I be enthusiasming? shan't you be enthusiasming? shan't he be enthusiasming? shan't we be enthusiasming? shan't you be enthusiasming? shan't they be enthusiasming?
Perfect
shan't I have enthusiasmed? shan't you have enthusiasmed? shan't he have enthusiasmed? shan't we have enthusiasmed? shan't you have enthusiasmed? shan't they have enthusiasmed?
V-ing perfect
shan't I have been enthusiasming? shan't you have been enthusiasming? shan't he have been enthusiasming? shan't we have been enthusiasming? shan't you have been enthusiasming? shan't they have been enthusiasming?