may whiten
Verbo regular: whiten - whitened- whitened

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may whiten
you may whiten
he may whiten
we may whiten
you may whiten
they may whiten 	I may be whitening
you may be whitening
he may be whitening
we may be whitening
you may be whitening
they may be whitening	I may have whitened
you may have whitened
he 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
he may have been whitening
we may have been whitening
you may have been whitening
they may have been whitening	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mayn't whiten
you mayn't whiten
he 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
he mayn't be whitening
we mayn't be whitening
you mayn't be whitening
they mayn't be whitening	I mayn't have whitened
you mayn't have whitened
he 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
he mayn't have been whitening
we mayn't have been whitening
you mayn't have been whitening
they mayn't have been whitening	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I whiten?
may you whiten?
may he whiten?
may we whiten?
may you whiten?
may they whiten? 	may I be whitening?
may you be whitening?
may he be whitening?
may we be whitening?
may you be whitening?
may they be whitening? 	may I have whitened?
may you have whitened?
may he 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 he have been whitening?
may we have been whitening?
may you have been whitening?
may they have been whitening? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mayn't I whiten?
mayn't you whiten?
mayn't he 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 he be whitening?
mayn't we be whitening?
mayn't you be whitening?
mayn't they be whitening? 	mayn't I have whitened?
mayn't you have whitened?
mayn't he 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 he have been whitening?
mayn't we have been whitening?
mayn't you have been whitening?
mayn't they have been whitening?