English verb conjugation
MAY DECUPLE

Regular verb: decuple - decupled - decupled

Affirmation

Simple form	V-ing form
I may decuple you may decuple she may decuple we may decuple you may decuple they may decuple	I may be decupling you may be decupling she 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 she 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 she 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 she 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 she 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 she 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 she 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 she decuple? may we decuple? may you decuple? may they decuple?	may I be decupling? may you be decupling? may she 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 she 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 she 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 she 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 she 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 she 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 she have been decupling? mayn't we have been decupling? mayn't you have been decupling? mayn't they have been decupling?