I may touch you may touch he may touch we may touch you may touch they may touch
V-ing form
I may be touching you may be touching he may be touching we may be touching you may be touching they may be touching
Perfect
I may have touched you may have touched he may have touched we may have touched you may have touched they may have touched
V-ing perfect
I may have been touching you may have been touching he may have been touching we may have been touching you may have been touching they may have been touching
Negation
Simple form
I mayn't touch you mayn't touch he mayn't touch we mayn't touch you mayn't touch they mayn't touch
V-ing form
I mayn't be touching you mayn't be touching he mayn't be touching we mayn't be touching you mayn't be touching they mayn't be touching
Perfect
I mayn't have touched you mayn't have touched he mayn't have touched we mayn't have touched you mayn't have touched they mayn't have touched
V-ing perfect
I mayn't have been touching you mayn't have been touching he mayn't have been touching we mayn't have been touching you mayn't have been touching they mayn't have been touching
Interrogative form
Simple form
may I touch? may you touch? may he touch? may we touch? may you touch? may they touch?
V-ing form
may I be touching? may you be touching? may he be touching? may we be touching? may you be touching? may they be touching?
Perfect
may I have touched? may you have touched? may he have touched? may we have touched? may you have touched? may they have touched?
V-ing perfect
may I have been touching? may you have been touching? may he have been touching? may we have been touching? may you have been touching? may they have been touching?
Interro-negative form
Simple form
mayn't I touch? mayn't you touch? mayn't he touch? mayn't we touch? mayn't you touch? mayn't they touch?
V-ing form
mayn't I be touching? mayn't you be touching? mayn't he be touching? mayn't we be touching? mayn't you be touching? mayn't they be touching?
Perfect
mayn't I have touched? mayn't you have touched? mayn't he have touched? mayn't we have touched? mayn't you have touched? mayn't they have touched?
V-ing perfect
mayn't I have been touching? mayn't you have been touching? mayn't he have been touching? mayn't we have been touching? mayn't you have been touching? mayn't they have been touching?