I may engineer you may engineer she may engineer we may engineer you may engineer they may engineer
V-ing form
I may be engineering you may be engineering she may be engineering we may be engineering you may be engineering they may be engineering
Perfect
I may have engineered you may have engineered she may have engineered we may have engineered you may have engineered they may have engineered
V-ing perfect
I may have been engineering you may have been engineering she may have been engineering we may have been engineering you may have been engineering they may have been engineering
Negation
Simple form
I may not engineer you may not engineer she may not engineer we may not engineer you may not engineer they may not engineer
V-ing form
I may not be engineering you may not be engineering she may not be engineering we may not be engineering you may not be engineering they may not be engineering
Perfect
I may not have engineered you may not have engineered she may not have engineered we may not have engineered you may not have engineered they may not have engineered
V-ing perfect
I may not have been engineering you may not have been engineering she may not have been engineering we may not have been engineering you may not have been engineering they may not have been engineering
Interrogative form
Simple form
may I engineer? may you engineer? may she engineer? may we engineer? may you engineer? may they engineer?
V-ing form
may I be engineering? may you be engineering? may she be engineering? may we be engineering? may you be engineering? may they be engineering?
Perfect
may I have engineered? may you have engineered? may she have engineered? may we have engineered? may you have engineered? may they have engineered?
V-ing perfect
may I have been engineering? may you have been engineering? may she have been engineering? may we have been engineering? may you have been engineering? may they have been engineering?
Interro-negative form
Simple form
may I not engineer? may you not engineer? may she not engineer? may we not engineer? may you not engineer? may they not engineer?
V-ing form
may I not be engineering? may you not be engineering? may she not be engineering? may we not be engineering? may you not be engineering? may they not be engineering?
Perfect
may I not have engineered? may you not have engineered? may she not have engineered? may we not have engineered? may you not have engineered? may they not have engineered?
V-ing perfect
may I not have been engineering? may you not have been engineering? may she not have been engineering? may we not have been engineering? may you not have been engineering? may they not have been engineering?