shall forecast
Irregular verb: forecast - forecast- forecast

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall forecast
you shall forecast
he shall forecast
we shall forecast
you shall forecast
they shall forecast 	I shall be forecasting
you shall be forecasting
he shall be forecasting
we shall be forecasting
you shall be forecasting
they shall be forecasting	I shall have forecast
you shall have forecast
he shall have forecast
we shall have forecast
you shall have forecast
they shall have forecast	I shall have been forecasting
you shall have been forecasting
he shall have been forecasting
we shall have been forecasting
you shall have been forecasting
they shall have been forecasting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall not forecast
you shall not forecast
he shall not forecast
we shall not forecast
you shall not forecast
they shall not forecast 	I shall not be forecasting
you shall not be forecasting
he shall not be forecasting
we shall not be forecasting
you shall not be forecasting
they shall not be forecasting	I shall not have forecast
you shall not have forecast
he shall not have forecast
we shall not have forecast
you shall not have forecast
they shall not have forecast	I shall not have been forecasting
you shall not have been forecasting
he shall not have been forecasting
we shall not have been forecasting
you shall not have been forecasting
they shall not have been forecasting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I forecast?
shall you forecast?
shall he forecast?
shall we forecast?
shall you forecast?
shall they forecast? 	shall I be forecasting?
shall you be forecasting?
shall he be forecasting?
shall we be forecasting?
shall you be forecasting?
shall they be forecasting? 	shall I have forecast?
shall you have forecast?
shall he have forecast?
shall we have forecast?
shall you have forecast?
shall they have forecast? 	shall I have been forecasting?
shall you have been forecasting?
shall he have been forecasting?
shall we have been forecasting?
shall you have been forecasting?
shall they have been forecasting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I not forecast?
shall you not forecast?
shall he not forecast?
shall we not forecast?
shall you not forecast?
shall they not forecast? 	shall I not be forecasting?
shall you not be forecasting?
shall he not be forecasting?
shall we not be forecasting?
shall you not be forecasting?
shall they not be forecasting? 	shall I not have forecast?
shall you not have forecast?
shall he not have forecast?
shall we not have forecast?
shall you not have forecast?
shall they not have forecast? 	shall I not have been forecasting?
shall you not have been forecasting?
shall he not have been forecasting?
shall we not have been forecasting?
shall you not have been forecasting?
shall they not have been forecasting?