English verb conjugation
MAY CREST

Regular verb: crest - crested - crested

Affirmation

Simple form	V-ing form
I may crest you may crest she may crest we may crest you may crest they may crest	I may be cresting you may be cresting she may be cresting we may be cresting you may be cresting they may be cresting
Perfect	V-ing perfect
I may have crested you may have crested she may have crested we may have crested you may have crested they may have crested	I may have been cresting you may have been cresting she may have been cresting we may have been cresting you may have been cresting they may have been cresting

Negation

Simple form	V-ing form
I mayn't crest you mayn't crest she mayn't crest we mayn't crest you mayn't crest they mayn't crest	I mayn't be cresting you mayn't be cresting she mayn't be cresting we mayn't be cresting you mayn't be cresting they mayn't be cresting
Perfect	V-ing perfect
I mayn't have crested you mayn't have crested she mayn't have crested we mayn't have crested you mayn't have crested they mayn't have crested	I mayn't have been cresting you mayn't have been cresting she mayn't have been cresting we mayn't have been cresting you mayn't have been cresting they mayn't have been cresting

Interrogative form

Simple form	V-ing form
may I crest? may you crest? may she crest? may we crest? may you crest? may they crest?	may I be cresting? may you be cresting? may she be cresting? may we be cresting? may you be cresting? may they be cresting?
Perfect	V-ing perfect
may I have crested? may you have crested? may she have crested? may we have crested? may you have crested? may they have crested?	may I have been cresting? may you have been cresting? may she have been cresting? may we have been cresting? may you have been cresting? may they have been cresting?

Interro-negative form

Simple form	V-ing form
mayn't I crest? mayn't you crest? mayn't she crest? mayn't we crest? mayn't you crest? mayn't they crest?	mayn't I be cresting? mayn't you be cresting? mayn't she be cresting? mayn't we be cresting? mayn't you be cresting? mayn't they be cresting?
Perfect	V-ing perfect
mayn't I have crested? mayn't you have crested? mayn't she have crested? mayn't we have crested? mayn't you have crested? mayn't they have crested?	mayn't I have been cresting? mayn't you have been cresting? mayn't she have been cresting? mayn't we have been cresting? mayn't you have been cresting? mayn't they have been cresting?