Regular verb: billboard - billboarded - billboarded
Affirmation
Simple form
I may billboard you may billboard he may billboard we may billboard you may billboard they may billboard
V-ing form
I may be billboarding you may be billboarding he may be billboarding we may be billboarding you may be billboarding they may be billboarding
Perfect
I may have billboarded you may have billboarded he may have billboarded we may have billboarded you may have billboarded they may have billboarded
V-ing perfect
I may have been billboarding you may have been billboarding he may have been billboarding we may have been billboarding you may have been billboarding they may have been billboarding
Negation
Simple form
I mayn't billboard you mayn't billboard he mayn't billboard we mayn't billboard you mayn't billboard they mayn't billboard
V-ing form
I mayn't be billboarding you mayn't be billboarding he mayn't be billboarding we mayn't be billboarding you mayn't be billboarding they mayn't be billboarding
Perfect
I mayn't have billboarded you mayn't have billboarded he mayn't have billboarded we mayn't have billboarded you mayn't have billboarded they mayn't have billboarded
V-ing perfect
I mayn't have been billboarding you mayn't have been billboarding he mayn't have been billboarding we mayn't have been billboarding you mayn't have been billboarding they mayn't have been billboarding
Interrogative form
Simple form
may I billboard? may you billboard? may he billboard? may we billboard? may you billboard? may they billboard?
V-ing form
may I be billboarding? may you be billboarding? may he be billboarding? may we be billboarding? may you be billboarding? may they be billboarding?
Perfect
may I have billboarded? may you have billboarded? may he have billboarded? may we have billboarded? may you have billboarded? may they have billboarded?
V-ing perfect
may I have been billboarding? may you have been billboarding? may he have been billboarding? may we have been billboarding? may you have been billboarding? may they have been billboarding?
Interro-negative form
Simple form
mayn't I billboard? mayn't you billboard? mayn't he billboard? mayn't we billboard? mayn't you billboard? mayn't they billboard?
V-ing form
mayn't I be billboarding? mayn't you be billboarding? mayn't he be billboarding? mayn't we be billboarding? mayn't you be billboarding? mayn't they be billboarding?
Perfect
mayn't I have billboarded? mayn't you have billboarded? mayn't he have billboarded? mayn't we have billboarded? mayn't you have billboarded? mayn't they have billboarded?
V-ing perfect
mayn't I have been billboarding? mayn't you have been billboarding? mayn't he have been billboarding? mayn't we have been billboarding? mayn't you have been billboarding? mayn't they have been billboarding?