English verb conjugation
MAY DECUPLE

Regular verb: decuple - decupled - decupled

Affirmation

Simple form	V-ing form
I may decuple you may decuple he may decuple we may decuple you may decuple they may decuple	I may be decupling you may be decupling he may be decupling we may be decupling you may be decupling they may be decupling
Perfect	V-ing perfect
I may have decupled you may have decupled he may have decupled we may have decupled you may have decupled they may have decupled	I may have been decupling you may have been decupling he may have been decupling we may have been decupling you may have been decupling they may have been decupling

Negation

Simple form	V-ing form
I mayn't decuple you mayn't decuple he mayn't decuple we mayn't decuple you mayn't decuple they mayn't decuple	I mayn't be decupling you mayn't be decupling he mayn't be decupling we mayn't be decupling you mayn't be decupling they mayn't be decupling
Perfect	V-ing perfect
I mayn't have decupled you mayn't have decupled he mayn't have decupled we mayn't have decupled you mayn't have decupled they mayn't have decupled	I mayn't have been decupling you mayn't have been decupling he mayn't have been decupling we mayn't have been decupling you mayn't have been decupling they mayn't have been decupling

Interrogative form

Simple form	V-ing form
may I decuple? may you decuple? may he decuple? may we decuple? may you decuple? may they decuple?	may I be decupling? may you be decupling? may he be decupling? may we be decupling? may you be decupling? may they be decupling?
Perfect	V-ing perfect
may I have decupled? may you have decupled? may he have decupled? may we have decupled? may you have decupled? may they have decupled?	may I have been decupling? may you have been decupling? may he have been decupling? may we have been decupling? may you have been decupling? may they have been decupling?

Interro-negative form

Simple form	V-ing form
mayn't I decuple? mayn't you decuple? mayn't he decuple? mayn't we decuple? mayn't you decuple? mayn't they decuple?	mayn't I be decupling? mayn't you be decupling? mayn't he be decupling? mayn't we be decupling? mayn't you be decupling? mayn't they be decupling?
Perfect	V-ing perfect
mayn't I have decupled? mayn't you have decupled? mayn't he have decupled? mayn't we have decupled? mayn't you have decupled? mayn't they have decupled?	mayn't I have been decupling? mayn't you have been decupling? mayn't he have been decupling? mayn't we have been decupling? mayn't you have been decupling? mayn't they have been decupling?