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