English verb conjugation
MAY DERIVE

Regular verb: derive - derived - derived

Affirmation

Simple form	V-ing form
I may derive you may derive he may derive we may derive you may derive they may derive	I may be deriving you may be deriving he may be deriving we may be deriving you may be deriving they may be deriving
Perfect	V-ing perfect
I may have derived you may have derived he may have derived we may have derived you may have derived they may have derived	I may have been deriving you may have been deriving he may have been deriving we may have been deriving you may have been deriving they may have been deriving

Negation

Simple form	V-ing form
I mayn't derive you mayn't derive he mayn't derive we mayn't derive you mayn't derive they mayn't derive	I mayn't be deriving you mayn't be deriving he mayn't be deriving we mayn't be deriving you mayn't be deriving they mayn't be deriving
Perfect	V-ing perfect
I mayn't have derived you mayn't have derived he mayn't have derived we mayn't have derived you mayn't have derived they mayn't have derived	I mayn't have been deriving you mayn't have been deriving he mayn't have been deriving we mayn't have been deriving you mayn't have been deriving they mayn't have been deriving

Interrogative form

Simple form	V-ing form
may I derive? may you derive? may he derive? may we derive? may you derive? may they derive?	may I be deriving? may you be deriving? may he be deriving? may we be deriving? may you be deriving? may they be deriving?
Perfect	V-ing perfect
may I have derived? may you have derived? may he have derived? may we have derived? may you have derived? may they have derived?	may I have been deriving? may you have been deriving? may he have been deriving? may we have been deriving? may you have been deriving? may they have been deriving?

Interro-negative form

Simple form	V-ing form
mayn't I derive? mayn't you derive? mayn't he derive? mayn't we derive? mayn't you derive? mayn't they derive?	mayn't I be deriving? mayn't you be deriving? mayn't he be deriving? mayn't we be deriving? mayn't you be deriving? mayn't they be deriving?
Perfect	V-ing perfect
mayn't I have derived? mayn't you have derived? mayn't he have derived? mayn't we have derived? mayn't you have derived? mayn't they have derived?	mayn't I have been deriving? mayn't you have been deriving? mayn't he have been deriving? mayn't we have been deriving? mayn't you have been deriving? mayn't they have been deriving?