English verb conjugation
COULD FORECAST

Irregular verb: forecast - forecast - forecast

Affirmation

Simple form	V-ing form
I could forecast you could forecast she could forecast we could forecast you could forecast they could forecast	I could be forecasting you could be forecasting she 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 she 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 she 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 she 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 she 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 she 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 she 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 she forecast? could we forecast? could you forecast? could they forecast?	could I be forecasting? could you be forecasting? could she 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 she 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 she 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 she 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 she 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 she 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 she have been forecasting? couldn't we have been forecasting? couldn't you have been forecasting? couldn't they have been forecasting?