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