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