could forecast
Irregular verb: forecast - forecast- forecast

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

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

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

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