may echo
Verbo regular: echo - echoed- echoed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may echo
you may echo
she may echo
we may echo
you may echo
they may echo 	I may be echoing
you may be echoing
she may be echoing
we may be echoing
you may be echoing
they may be echoing	I may have echoed
you may have echoed
she may have echoed
we may have echoed
you may have echoed
they may have echoed	I may have been echoing
you may have been echoing
she may have been echoing
we may have been echoing
you may have been echoing
they may have been echoing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mayn't echo
you mayn't echo
she mayn't echo
we mayn't echo
you mayn't echo
they mayn't echo 	I mayn't be echoing
you mayn't be echoing
she mayn't be echoing
we mayn't be echoing
you mayn't be echoing
they mayn't be echoing	I mayn't have echoed
you mayn't have echoed
she mayn't have echoed
we mayn't have echoed
you mayn't have echoed
they mayn't have echoed	I mayn't have been echoing
you mayn't have been echoing
she mayn't have been echoing
we mayn't have been echoing
you mayn't have been echoing
they mayn't have been echoing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I echo?
may you echo?
may she echo?
may we echo?
may you echo?
may they echo? 	may I be echoing?
may you be echoing?
may she be echoing?
may we be echoing?
may you be echoing?
may they be echoing? 	may I have echoed?
may you have echoed?
may she have echoed?
may we have echoed?
may you have echoed?
may they have echoed? 	may I have been echoing?
may you have been echoing?
may she have been echoing?
may we have been echoing?
may you have been echoing?
may they have been echoing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mayn't I echo?
mayn't you echo?
mayn't she echo?
mayn't we echo?
mayn't you echo?
mayn't they echo? 	mayn't I be echoing?
mayn't you be echoing?
mayn't she be echoing?
mayn't we be echoing?
mayn't you be echoing?
mayn't they be echoing? 	mayn't I have echoed?
mayn't you have echoed?
mayn't she have echoed?
mayn't we have echoed?
mayn't you have echoed?
mayn't they have echoed? 	mayn't I have been echoing?
mayn't you have been echoing?
mayn't she have been echoing?
mayn't we have been echoing?
mayn't you have been echoing?
mayn't they have been echoing?