I'll be countersinking you'll be countersinking she'll be countersinking we'll be countersinking you'll be countersinking they'll be countersinking
Perfect
I'll have countersunk you'll have countersunk she'll have countersunk we'll have countersunk you'll have countersunk they'll have countersunk
V-ing perfect
I'll have been countersinking you'll have been countersinking she'll have been countersinking we'll have been countersinking you'll have been countersinking they'll have been countersinking
Negation
Simple form
I shan't countersink you shan't countersink she shan't countersink we shan't countersink you shan't countersink they shan't countersink
V-ing form
I shan't be countersinking you shan't be countersinking she shan't be countersinking we shan't be countersinking you shan't be countersinking they shan't be countersinking
Perfect
I shan't have countersunk you shan't have countersunk she shan't have countersunk we shan't have countersunk you shan't have countersunk they shan't have countersunk
V-ing perfect
I shan't have been countersinking you shan't have been countersinking she shan't have been countersinking we shan't have been countersinking you shan't have been countersinking they shan't have been countersinking
Interrogative form
Simple form
shall I countersink? shall you countersink? shall she countersink? shall we countersink? shall you countersink? shall they countersink?
V-ing form
shall I be countersinking? shall you be countersinking? shall she be countersinking? shall we be countersinking? shall you be countersinking? shall they be countersinking?
Perfect
shall I have countersunk? shall you have countersunk? shall she have countersunk? shall we have countersunk? shall you have countersunk? shall they have countersunk?
V-ing perfect
shall I have been countersinking? shall you have been countersinking? shall she have been countersinking? shall we have been countersinking? shall you have been countersinking? shall they have been countersinking?
Interro-negative form
Simple form
shan't I countersink? shan't you countersink? shan't she countersink? shan't we countersink? shan't you countersink? shan't they countersink?
V-ing form
shan't I be countersinking? shan't you be countersinking? shan't she be countersinking? shan't we be countersinking? shan't you be countersinking? shan't they be countersinking?
Perfect
shan't I have countersunk? shan't you have countersunk? shan't she have countersunk? shan't we have countersunk? shan't you have countersunk? shan't they have countersunk?
V-ing perfect
shan't I have been countersinking? shan't you have been countersinking? shan't she have been countersinking? shan't we have been countersinking? shan't you have been countersinking? shan't they have been countersinking?