
Regular verb: touch - touched - touched
Simple form | V-ing form | 
| I may touch you may touch she may touch we may touch you may touch they may touch  | I may be touching you may be touching she may be touching we may be touching you may be touching they may be touching  | 
Perfect | V-ing perfect | 
| I may have touched you may have touched she may have touched we may have touched you may have touched they may have touched  | I may have been touching you may have been touching she may have been touching we may have been touching you may have been touching they may have been touching  | 
Simple form | V-ing form | 
| I mayn't touch you mayn't touch she mayn't touch we mayn't touch you mayn't touch they mayn't touch  | I mayn't be touching you mayn't be touching she mayn't be touching we mayn't be touching you mayn't be touching they mayn't be touching  | 
Perfect | V-ing perfect | 
| I mayn't have touched you mayn't have touched she mayn't have touched we mayn't have touched you mayn't have touched they mayn't have touched  | I mayn't have been touching you mayn't have been touching she mayn't have been touching we mayn't have been touching you mayn't have been touching they mayn't have been touching  | 
Simple form | V-ing form | 
| may I touch? may you touch? may she touch? may we touch? may you touch? may they touch?  | may I be touching? may you be touching? may she be touching? may we be touching? may you be touching? may they be touching?  | 
Perfect | V-ing perfect | 
| may I have touched? may you have touched? may she have touched? may we have touched? may you have touched? may they have touched?  | may I have been touching? may you have been touching? may she have been touching? may we have been touching? may you have been touching? may they have been touching?  | 
Simple form | V-ing form | 
| mayn't I touch? mayn't you touch? mayn't she touch? mayn't we touch? mayn't you touch? mayn't they touch?  | mayn't I be touching? mayn't you be touching? mayn't she be touching? mayn't we be touching? mayn't you be touching? mayn't they be touching?  | 
Perfect | V-ing perfect | 
| mayn't I have touched? mayn't you have touched? mayn't she have touched? mayn't we have touched? mayn't you have touched? mayn't they have touched?  | mayn't I have been touching? mayn't you have been touching? mayn't she have been touching? mayn't we have been touching? mayn't you have been touching? mayn't they have been touching?  |