English verb conjugation
MAY FORECAST

Irregular verb: forecast - forecast - forecast

Affirmation

Simple form	V-ing form
I may forecast you may forecast she may forecast we may forecast you may forecast they may forecast	I may be forecasting you may be forecasting she may be forecasting we may be forecasting you may be forecasting they may be forecasting
Perfect	V-ing perfect
I may have forecast you may have forecast she may have forecast we may have forecast you may have forecast they may have forecast	I may have been forecasting you may have been forecasting she may have been forecasting we may have been forecasting you may have been forecasting they may have been forecasting

Negation

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

Interrogative form

Simple form	V-ing form
may I forecast? may you forecast? may she forecast? may we forecast? may you forecast? may they forecast?	may I be forecasting? may you be forecasting? may she be forecasting? may we be forecasting? may you be forecasting? may they be forecasting?
Perfect	V-ing perfect
may I have forecast? may you have forecast? may she have forecast? may we have forecast? may you have forecast? may they have forecast?	may I have been forecasting? may you have been forecasting? may she have been forecasting? may we have been forecasting? may you have been forecasting? may they have been forecasting?

Interro-negative form

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