may clack
Verbo regular: clack - clacked- clacked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may clack
you may clack
she may clack
we may clack
you may clack
they may clack 	I may be clacking
you may be clacking
she may be clacking
we may be clacking
you may be clacking
they may be clacking	I may have clacked
you may have clacked
she may have clacked
we may have clacked
you may have clacked
they may have clacked	I may have been clacking
you may have been clacking
she may have been clacking
we may have been clacking
you may have been clacking
they may have been clacking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mayn't clack
you mayn't clack
she mayn't clack
we mayn't clack
you mayn't clack
they mayn't clack 	I mayn't be clacking
you mayn't be clacking
she mayn't be clacking
we mayn't be clacking
you mayn't be clacking
they mayn't be clacking	I mayn't have clacked
you mayn't have clacked
she mayn't have clacked
we mayn't have clacked
you mayn't have clacked
they mayn't have clacked	I mayn't have been clacking
you mayn't have been clacking
she mayn't have been clacking
we mayn't have been clacking
you mayn't have been clacking
they mayn't have been clacking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I clack?
may you clack?
may she clack?
may we clack?
may you clack?
may they clack? 	may I be clacking?
may you be clacking?
may she be clacking?
may we be clacking?
may you be clacking?
may they be clacking? 	may I have clacked?
may you have clacked?
may she have clacked?
may we have clacked?
may you have clacked?
may they have clacked? 	may I have been clacking?
may you have been clacking?
may she have been clacking?
may we have been clacking?
may you have been clacking?
may they have been clacking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mayn't I clack?
mayn't you clack?
mayn't she clack?
mayn't we clack?
mayn't you clack?
mayn't they clack? 	mayn't I be clacking?
mayn't you be clacking?
mayn't she be clacking?
mayn't we be clacking?
mayn't you be clacking?
mayn't they be clacking? 	mayn't I have clacked?
mayn't you have clacked?
mayn't she have clacked?
mayn't we have clacked?
mayn't you have clacked?
mayn't they have clacked? 	mayn't I have been clacking?
mayn't you have been clacking?
mayn't she have been clacking?
mayn't we have been clacking?
mayn't you have been clacking?
mayn't they have been clacking?