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