English verb conjugation
MAY CURVE

Regular verb: curve - curved - curved

Affirmation

Simple form	V-ing form
I may curve you may curve he may curve we may curve you may curve they may curve	I may be curving you may be curving he may be curving we may be curving you may be curving they may be curving
Perfect	V-ing perfect
I may have curved you may have curved he may have curved we may have curved you may have curved they may have curved	I may have been curving you may have been curving he may have been curving we may have been curving you may have been curving they may have been curving

Negation

Simple form	V-ing form
I mayn't curve you mayn't curve he mayn't curve we mayn't curve you mayn't curve they mayn't curve	I mayn't be curving you mayn't be curving he mayn't be curving we mayn't be curving you mayn't be curving they mayn't be curving
Perfect	V-ing perfect
I mayn't have curved you mayn't have curved he mayn't have curved we mayn't have curved you mayn't have curved they mayn't have curved	I mayn't have been curving you mayn't have been curving he mayn't have been curving we mayn't have been curving you mayn't have been curving they mayn't have been curving

Interrogative form

Simple form	V-ing form
may I curve? may you curve? may he curve? may we curve? may you curve? may they curve?	may I be curving? may you be curving? may he be curving? may we be curving? may you be curving? may they be curving?
Perfect	V-ing perfect
may I have curved? may you have curved? may he have curved? may we have curved? may you have curved? may they have curved?	may I have been curving? may you have been curving? may he have been curving? may we have been curving? may you have been curving? may they have been curving?

Interro-negative form

Simple form	V-ing form
mayn't I curve? mayn't you curve? mayn't he curve? mayn't we curve? mayn't you curve? mayn't they curve?	mayn't I be curving? mayn't you be curving? mayn't he be curving? mayn't we be curving? mayn't you be curving? mayn't they be curving?
Perfect	V-ing perfect
mayn't I have curved? mayn't you have curved? mayn't he have curved? mayn't we have curved? mayn't you have curved? mayn't they have curved?	mayn't I have been curving? mayn't you have been curving? mayn't he have been curving? mayn't we have been curving? mayn't you have been curving? mayn't they have been curving?