English verb conjugation
COULD FORECAST

Irregular verb: forecast - forecast - forecast

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
I couldn't forecast you couldn't forecast he couldn't forecast we couldn't forecast you couldn't forecast they couldn't forecast	I couldn't be forecasting you couldn't be forecasting he couldn't be forecasting we couldn't be forecasting you couldn't be forecasting they couldn't be forecasting
Perfect	V-ing perfect
I couldn't have forecast you couldn't have forecast he couldn't have forecast we couldn't have forecast you couldn't have forecast they couldn't have forecast	I couldn't have been forecasting you couldn't have been forecasting he couldn't have been forecasting we couldn't have been forecasting you couldn't have been forecasting they couldn't have been forecasting

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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
couldn't I forecast? couldn't you forecast? couldn't he forecast? couldn't we forecast? couldn't you forecast? couldn't they forecast?	couldn't I be forecasting? couldn't you be forecasting? couldn't he be forecasting? couldn't we be forecasting? couldn't you be forecasting? couldn't they be forecasting?
Perfect	V-ing perfect
couldn't I have forecast? couldn't you have forecast? couldn't he have forecast? couldn't we have forecast? couldn't you have forecast? couldn't they have forecast?	couldn't I have been forecasting? couldn't you have been forecasting? couldn't he have been forecasting? couldn't we have been forecasting? couldn't you have been forecasting? couldn't they have been forecasting?