English verb conjugation
MAY WHITEN

Regular verb: whiten - whitened - whitened

Affirmation

Simple form	V-ing form
I may whiten you may whiten she may whiten we may whiten you may whiten they may whiten	I may be whitening you may be whitening she may be whitening we may be whitening you may be whitening they may be whitening
Perfect	V-ing perfect
I may have whitened you may have whitened she may have whitened we may have whitened you may have whitened they may have whitened	I may have been whitening you may have been whitening she may have been whitening we may have been whitening you may have been whitening they may have been whitening

Negation

Simple form	V-ing form
I mayn't whiten you mayn't whiten she mayn't whiten we mayn't whiten you mayn't whiten they mayn't whiten	I mayn't be whitening you mayn't be whitening she mayn't be whitening we mayn't be whitening you mayn't be whitening they mayn't be whitening
Perfect	V-ing perfect
I mayn't have whitened you mayn't have whitened she mayn't have whitened we mayn't have whitened you mayn't have whitened they mayn't have whitened	I mayn't have been whitening you mayn't have been whitening she mayn't have been whitening we mayn't have been whitening you mayn't have been whitening they mayn't have been whitening

Interrogative form

Simple form	V-ing form
may I whiten? may you whiten? may she whiten? may we whiten? may you whiten? may they whiten?	may I be whitening? may you be whitening? may she be whitening? may we be whitening? may you be whitening? may they be whitening?
Perfect	V-ing perfect
may I have whitened? may you have whitened? may she have whitened? may we have whitened? may you have whitened? may they have whitened?	may I have been whitening? may you have been whitening? may she have been whitening? may we have been whitening? may you have been whitening? may they have been whitening?

Interro-negative form

Simple form	V-ing form
mayn't I whiten? mayn't you whiten? mayn't she whiten? mayn't we whiten? mayn't you whiten? mayn't they whiten?	mayn't I be whitening? mayn't you be whitening? mayn't she be whitening? mayn't we be whitening? mayn't you be whitening? mayn't they be whitening?
Perfect	V-ing perfect
mayn't I have whitened? mayn't you have whitened? mayn't she have whitened? mayn't we have whitened? mayn't you have whitened? mayn't they have whitened?	mayn't I have been whitening? mayn't you have been whitening? mayn't she have been whitening? mayn't we have been whitening? mayn't you have been whitening? mayn't they have been whitening?