English verb conjugation
MAY RUMBLE

Regular verb: rumble - rumbled - rumbled

Affirmation

Simple form	V-ing form
I may rumble you may rumble she may rumble we may rumble you may rumble they may rumble	I may be rumbling you may be rumbling she may be rumbling we may be rumbling you may be rumbling they may be rumbling
Perfect	V-ing perfect
I may have rumbled you may have rumbled she may have rumbled we may have rumbled you may have rumbled they may have rumbled	I may have been rumbling you may have been rumbling she may have been rumbling we may have been rumbling you may have been rumbling they may have been rumbling

Negation

Simple form	V-ing form
I mayn't rumble you mayn't rumble she mayn't rumble we mayn't rumble you mayn't rumble they mayn't rumble	I mayn't be rumbling you mayn't be rumbling she mayn't be rumbling we mayn't be rumbling you mayn't be rumbling they mayn't be rumbling
Perfect	V-ing perfect
I mayn't have rumbled you mayn't have rumbled she mayn't have rumbled we mayn't have rumbled you mayn't have rumbled they mayn't have rumbled	I mayn't have been rumbling you mayn't have been rumbling she mayn't have been rumbling we mayn't have been rumbling you mayn't have been rumbling they mayn't have been rumbling

Interrogative form

Simple form	V-ing form
may I rumble? may you rumble? may she rumble? may we rumble? may you rumble? may they rumble?	may I be rumbling? may you be rumbling? may she be rumbling? may we be rumbling? may you be rumbling? may they be rumbling?
Perfect	V-ing perfect
may I have rumbled? may you have rumbled? may she have rumbled? may we have rumbled? may you have rumbled? may they have rumbled?	may I have been rumbling? may you have been rumbling? may she have been rumbling? may we have been rumbling? may you have been rumbling? may they have been rumbling?

Interro-negative form

Simple form	V-ing form
mayn't I rumble? mayn't you rumble? mayn't she rumble? mayn't we rumble? mayn't you rumble? mayn't they rumble?	mayn't I be rumbling? mayn't you be rumbling? mayn't she be rumbling? mayn't we be rumbling? mayn't you be rumbling? mayn't they be rumbling?
Perfect	V-ing perfect
mayn't I have rumbled? mayn't you have rumbled? mayn't she have rumbled? mayn't we have rumbled? mayn't you have rumbled? mayn't they have rumbled?	mayn't I have been rumbling? mayn't you have been rumbling? mayn't she have been rumbling? mayn't we have been rumbling? mayn't you have been rumbling? mayn't they have been rumbling?