may exist
Verbo regular: exist - existed- existed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may exist
you may exist
she may exist
we may exist
you may exist
they may exist 	I may be existing
you may be existing
she may be existing
we may be existing
you may be existing
they may be existing	I may have existed
you may have existed
she may have existed
we may have existed
you may have existed
they may have existed	I may have been existing
you may have been existing
she may have been existing
we may have been existing
you may have been existing
they may have been existing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not exist
you may not exist
she may not exist
we may not exist
you may not exist
they may not exist 	I may not be existing
you may not be existing
she may not be existing
we may not be existing
you may not be existing
they may not be existing	I may not have existed
you may not have existed
she may not have existed
we may not have existed
you may not have existed
they may not have existed	I may not have been existing
you may not have been existing
she may not have been existing
we may not have been existing
you may not have been existing
they may not have been existing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I exist?
may you exist?
may she exist?
may we exist?
may you exist?
may they exist? 	may I be existing?
may you be existing?
may she be existing?
may we be existing?
may you be existing?
may they be existing? 	may I have existed?
may you have existed?
may she have existed?
may we have existed?
may you have existed?
may they have existed? 	may I have been existing?
may you have been existing?
may she have been existing?
may we have been existing?
may you have been existing?
may they have been existing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I not exist?
may you not exist?
may she not exist?
may we not exist?
may you not exist?
may they not exist? 	may I not be existing?
may you not be existing?
may she not be existing?
may we not be existing?
may you not be existing?
may they not be existing? 	may I not have existed?
may you not have existed?
may she not have existed?
may we not have existed?
may you not have existed?
may they not have existed? 	may I not have been existing?
may you not have been existing?
may she not have been existing?
may we not have been existing?
may you not have been existing?
may they not have been existing?