may cough
Verbo regular: cough - coughed- coughed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may cough
you may cough
she may cough
we may cough
you may cough
they may cough 	I may be coughing
you may be coughing
she may be coughing
we may be coughing
you may be coughing
they may be coughing	I may have coughed
you may have coughed
she may have coughed
we may have coughed
you may have coughed
they may have coughed	I may have been coughing
you may have been coughing
she may have been coughing
we may have been coughing
you may have been coughing
they may have been coughing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mayn't cough
you mayn't cough
she mayn't cough
we mayn't cough
you mayn't cough
they mayn't cough 	I mayn't be coughing
you mayn't be coughing
she mayn't be coughing
we mayn't be coughing
you mayn't be coughing
they mayn't be coughing	I mayn't have coughed
you mayn't have coughed
she mayn't have coughed
we mayn't have coughed
you mayn't have coughed
they mayn't have coughed	I mayn't have been coughing
you mayn't have been coughing
she mayn't have been coughing
we mayn't have been coughing
you mayn't have been coughing
they mayn't have been coughing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I cough?
may you cough?
may she cough?
may we cough?
may you cough?
may they cough? 	may I be coughing?
may you be coughing?
may she be coughing?
may we be coughing?
may you be coughing?
may they be coughing? 	may I have coughed?
may you have coughed?
may she have coughed?
may we have coughed?
may you have coughed?
may they have coughed? 	may I have been coughing?
may you have been coughing?
may she have been coughing?
may we have been coughing?
may you have been coughing?
may they have been coughing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mayn't I cough?
mayn't you cough?
mayn't she cough?
mayn't we cough?
mayn't you cough?
mayn't they cough? 	mayn't I be coughing?
mayn't you be coughing?
mayn't she be coughing?
mayn't we be coughing?
mayn't you be coughing?
mayn't they be coughing? 	mayn't I have coughed?
mayn't you have coughed?
mayn't she have coughed?
mayn't we have coughed?
mayn't you have coughed?
mayn't they have coughed? 	mayn't I have been coughing?
mayn't you have been coughing?
mayn't she have been coughing?
mayn't we have been coughing?
mayn't you have been coughing?
mayn't they have been coughing?