I may steam you may steam she may steam we may steam you may steam they may steam
V-ing form
I may be steaming you may be steaming she may be steaming we may be steaming you may be steaming they may be steaming
Perfect
I may have steamed you may have steamed she may have steamed we may have steamed you may have steamed they may have steamed
V-ing perfect
I may have been steaming you may have been steaming she may have been steaming we may have been steaming you may have been steaming they may have been steaming
Negation
Simple form
I may not steam you may not steam she may not steam we may not steam you may not steam they may not steam
V-ing form
I may not be steaming you may not be steaming she may not be steaming we may not be steaming you may not be steaming they may not be steaming
Perfect
I may not have steamed you may not have steamed she may not have steamed we may not have steamed you may not have steamed they may not have steamed
V-ing perfect
I may not have been steaming you may not have been steaming she may not have been steaming we may not have been steaming you may not have been steaming they may not have been steaming
Interrogative form
Simple form
may I steam? may you steam? may she steam? may we steam? may you steam? may they steam?
V-ing form
may I be steaming? may you be steaming? may she be steaming? may we be steaming? may you be steaming? may they be steaming?
Perfect
may I have steamed? may you have steamed? may she have steamed? may we have steamed? may you have steamed? may they have steamed?
V-ing perfect
may I have been steaming? may you have been steaming? may she have been steaming? may we have been steaming? may you have been steaming? may they have been steaming?
Interro-negative form
Simple form
may I not steam? may you not steam? may she not steam? may we not steam? may you not steam? may they not steam?
V-ing form
may I not be steaming? may you not be steaming? may she not be steaming? may we not be steaming? may you not be steaming? may they not be steaming?
Perfect
may I not have steamed? may you not have steamed? may she not have steamed? may we not have steamed? may you not have steamed? may they not have steamed?
V-ing perfect
may I not have been steaming? may you not have been steaming? may she not have been steaming? may we not have been steaming? may you not have been steaming? may they not have been steaming?