English verb conjugation
MAY CUBE

Regular verb: cube - cubed - cubed

Affirmation

Simple form	V-ing form
I may cube you may cube he may cube we may cube you may cube they may cube	I may be cubing you may be cubing he may be cubing we may be cubing you may be cubing they may be cubing
Perfect	V-ing perfect
I may have cubed you may have cubed he may have cubed we may have cubed you may have cubed they may have cubed	I may have been cubing you may have been cubing he may have been cubing we may have been cubing you may have been cubing they may have been cubing

Negation

Simple form	V-ing form
I mayn't cube you mayn't cube he mayn't cube we mayn't cube you mayn't cube they mayn't cube	I mayn't be cubing you mayn't be cubing he mayn't be cubing we mayn't be cubing you mayn't be cubing they mayn't be cubing
Perfect	V-ing perfect
I mayn't have cubed you mayn't have cubed he mayn't have cubed we mayn't have cubed you mayn't have cubed they mayn't have cubed	I mayn't have been cubing you mayn't have been cubing he mayn't have been cubing we mayn't have been cubing you mayn't have been cubing they mayn't have been cubing

Interrogative form

Simple form	V-ing form
may I cube? may you cube? may he cube? may we cube? may you cube? may they cube?	may I be cubing? may you be cubing? may he be cubing? may we be cubing? may you be cubing? may they be cubing?
Perfect	V-ing perfect
may I have cubed? may you have cubed? may he have cubed? may we have cubed? may you have cubed? may they have cubed?	may I have been cubing? may you have been cubing? may he have been cubing? may we have been cubing? may you have been cubing? may they have been cubing?

Interro-negative form

Simple form	V-ing form
mayn't I cube? mayn't you cube? mayn't he cube? mayn't we cube? mayn't you cube? mayn't they cube?	mayn't I be cubing? mayn't you be cubing? mayn't he be cubing? mayn't we be cubing? mayn't you be cubing? mayn't they be cubing?
Perfect	V-ing perfect
mayn't I have cubed? mayn't you have cubed? mayn't he have cubed? mayn't we have cubed? mayn't you have cubed? mayn't they have cubed?	mayn't I have been cubing? mayn't you have been cubing? mayn't he have been cubing? mayn't we have been cubing? mayn't you have been cubing? mayn't they have been cubing?