may check
Verbo regular: check - checked- checked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may check
you may check
she may check
we may check
you may check
they may check 	I may be checking
you may be checking
she may be checking
we may be checking
you may be checking
they may be checking	I may have checked
you may have checked
she may have checked
we may have checked
you may have checked
they may have checked	I may have been checking
you may have been checking
she may have been checking
we may have been checking
you may have been checking
they may have been checking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mayn't check
you mayn't check
she mayn't check
we mayn't check
you mayn't check
they mayn't check 	I mayn't be checking
you mayn't be checking
she mayn't be checking
we mayn't be checking
you mayn't be checking
they mayn't be checking	I mayn't have checked
you mayn't have checked
she mayn't have checked
we mayn't have checked
you mayn't have checked
they mayn't have checked	I mayn't have been checking
you mayn't have been checking
she mayn't have been checking
we mayn't have been checking
you mayn't have been checking
they mayn't have been checking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I check?
may you check?
may she check?
may we check?
may you check?
may they check? 	may I be checking?
may you be checking?
may she be checking?
may we be checking?
may you be checking?
may they be checking? 	may I have checked?
may you have checked?
may she have checked?
may we have checked?
may you have checked?
may they have checked? 	may I have been checking?
may you have been checking?
may she have been checking?
may we have been checking?
may you have been checking?
may they have been checking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mayn't I check?
mayn't you check?
mayn't she check?
mayn't we check?
mayn't you check?
mayn't they check? 	mayn't I be checking?
mayn't you be checking?
mayn't she be checking?
mayn't we be checking?
mayn't you be checking?
mayn't they be checking? 	mayn't I have checked?
mayn't you have checked?
mayn't she have checked?
mayn't we have checked?
mayn't you have checked?
mayn't they have checked? 	mayn't I have been checking?
mayn't you have been checking?
mayn't she have been checking?
mayn't we have been checking?
mayn't you have been checking?
mayn't they have been checking?