I may invalidate you may invalidate he may invalidate we may invalidate you may invalidate they may invalidate
V-ing form
I may be invalidating you may be invalidating he may be invalidating we may be invalidating you may be invalidating they may be invalidating
Perfect
I may have invalidated you may have invalidated he may have invalidated we may have invalidated you may have invalidated they may have invalidated
V-ing perfect
I may have been invalidating you may have been invalidating he may have been invalidating we may have been invalidating you may have been invalidating they may have been invalidating
Negation
Simple form
I may not invalidate you may not invalidate he may not invalidate we may not invalidate you may not invalidate they may not invalidate
V-ing form
I may not be invalidating you may not be invalidating he may not be invalidating we may not be invalidating you may not be invalidating they may not be invalidating
Perfect
I may not have invalidated you may not have invalidated he may not have invalidated we may not have invalidated you may not have invalidated they may not have invalidated
V-ing perfect
I may not have been invalidating you may not have been invalidating he may not have been invalidating we may not have been invalidating you may not have been invalidating they may not have been invalidating
Interrogative form
Simple form
may I invalidate? may you invalidate? may he invalidate? may we invalidate? may you invalidate? may they invalidate?
V-ing form
may I be invalidating? may you be invalidating? may he be invalidating? may we be invalidating? may you be invalidating? may they be invalidating?
Perfect
may I have invalidated? may you have invalidated? may he have invalidated? may we have invalidated? may you have invalidated? may they have invalidated?
V-ing perfect
may I have been invalidating? may you have been invalidating? may he have been invalidating? may we have been invalidating? may you have been invalidating? may they have been invalidating?
Interro-negative form
Simple form
may I not invalidate? may you not invalidate? may he not invalidate? may we not invalidate? may you not invalidate? may they not invalidate?
V-ing form
may I not be invalidating? may you not be invalidating? may he not be invalidating? may we not be invalidating? may you not be invalidating? may they not be invalidating?
Perfect
may I not have invalidated? may you not have invalidated? may he not have invalidated? may we not have invalidated? may you not have invalidated? may they not have invalidated?
V-ing perfect
may I not have been invalidating? may you not have been invalidating? may he not have been invalidating? may we not have been invalidating? may you not have been invalidating? may they not have been invalidating?