may mask
Verbo regular: mask - masked- masked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may mask
you may mask
he may mask
we may mask
you may mask
they may mask 	I may be masking
you may be masking
he may be masking
we may be masking
you may be masking
they may be masking	I may have masked
you may have masked
he may have masked
we may have masked
you may have masked
they may have masked	I may have been masking
you may have been masking
he may have been masking
we may have been masking
you may have been masking
they may have been masking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mayn't mask
you mayn't mask
he mayn't mask
we mayn't mask
you mayn't mask
they mayn't mask 	I mayn't be masking
you mayn't be masking
he mayn't be masking
we mayn't be masking
you mayn't be masking
they mayn't be masking	I mayn't have masked
you mayn't have masked
he mayn't have masked
we mayn't have masked
you mayn't have masked
they mayn't have masked	I mayn't have been masking
you mayn't have been masking
he mayn't have been masking
we mayn't have been masking
you mayn't have been masking
they mayn't have been masking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I mask?
may you mask?
may he mask?
may we mask?
may you mask?
may they mask? 	may I be masking?
may you be masking?
may he be masking?
may we be masking?
may you be masking?
may they be masking? 	may I have masked?
may you have masked?
may he have masked?
may we have masked?
may you have masked?
may they have masked? 	may I have been masking?
may you have been masking?
may he have been masking?
may we have been masking?
may you have been masking?
may they have been masking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mayn't I mask?
mayn't you mask?
mayn't he mask?
mayn't we mask?
mayn't you mask?
mayn't they mask? 	mayn't I be masking?
mayn't you be masking?
mayn't he be masking?
mayn't we be masking?
mayn't you be masking?
mayn't they be masking? 	mayn't I have masked?
mayn't you have masked?
mayn't he have masked?
mayn't we have masked?
mayn't you have masked?
mayn't they have masked? 	mayn't I have been masking?
mayn't you have been masking?
mayn't he have been masking?
mayn't we have been masking?
mayn't you have been masking?
mayn't they have been masking?