English verb conjugation
MAY CRUMPLE

Regular verb: crumple - crumpled - crumpled

Affirmation

Simple form	V-ing form
I may crumple you may crumple he may crumple we may crumple you may crumple they may crumple	I may be crumpling you may be crumpling he may be crumpling we may be crumpling you may be crumpling they may be crumpling
Perfect	V-ing perfect
I may have crumpled you may have crumpled he may have crumpled we may have crumpled you may have crumpled they may have crumpled	I may have been crumpling you may have been crumpling he may have been crumpling we may have been crumpling you may have been crumpling they may have been crumpling

Negation

Simple form	V-ing form
I mayn't crumple you mayn't crumple he mayn't crumple we mayn't crumple you mayn't crumple they mayn't crumple	I mayn't be crumpling you mayn't be crumpling he mayn't be crumpling we mayn't be crumpling you mayn't be crumpling they mayn't be crumpling
Perfect	V-ing perfect
I mayn't have crumpled you mayn't have crumpled he mayn't have crumpled we mayn't have crumpled you mayn't have crumpled they mayn't have crumpled	I mayn't have been crumpling you mayn't have been crumpling he mayn't have been crumpling we mayn't have been crumpling you mayn't have been crumpling they mayn't have been crumpling

Interrogative form

Simple form	V-ing form
may I crumple? may you crumple? may he crumple? may we crumple? may you crumple? may they crumple?	may I be crumpling? may you be crumpling? may he be crumpling? may we be crumpling? may you be crumpling? may they be crumpling?
Perfect	V-ing perfect
may I have crumpled? may you have crumpled? may he have crumpled? may we have crumpled? may you have crumpled? may they have crumpled?	may I have been crumpling? may you have been crumpling? may he have been crumpling? may we have been crumpling? may you have been crumpling? may they have been crumpling?

Interro-negative form

Simple form	V-ing form
mayn't I crumple? mayn't you crumple? mayn't he crumple? mayn't we crumple? mayn't you crumple? mayn't they crumple?	mayn't I be crumpling? mayn't you be crumpling? mayn't he be crumpling? mayn't we be crumpling? mayn't you be crumpling? mayn't they be crumpling?
Perfect	V-ing perfect
mayn't I have crumpled? mayn't you have crumpled? mayn't he have crumpled? mayn't we have crumpled? mayn't you have crumpled? mayn't they have crumpled?	mayn't I have been crumpling? mayn't you have been crumpling? mayn't he have been crumpling? mayn't we have been crumpling? mayn't you have been crumpling? mayn't they have been crumpling?