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