may surface
Verbo regular: surface - surfaced- surfaced

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may surface
you may surface
he may surface
we may surface
you may surface
they may surface 	I may be surfacing
you may be surfacing
he may be surfacing
we may be surfacing
you may be surfacing
they may be surfacing	I may have surfaced
you may have surfaced
he may have surfaced
we may have surfaced
you may have surfaced
they may have surfaced	I may have been surfacing
you may have been surfacing
he may have been surfacing
we may have been surfacing
you may have been surfacing
they may have been surfacing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not surface
you may not surface
he may not surface
we may not surface
you may not surface
they may not surface 	I may not be surfacing
you may not be surfacing
he may not be surfacing
we may not be surfacing
you may not be surfacing
they may not be surfacing	I may not have surfaced
you may not have surfaced
he may not have surfaced
we may not have surfaced
you may not have surfaced
they may not have surfaced	I may not have been surfacing
you may not have been surfacing
he may not have been surfacing
we may not have been surfacing
you may not have been surfacing
they may not have been surfacing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I surface?
may you surface?
may he surface?
may we surface?
may you surface?
may they surface? 	may I be surfacing?
may you be surfacing?
may he be surfacing?
may we be surfacing?
may you be surfacing?
may they be surfacing? 	may I have surfaced?
may you have surfaced?
may he have surfaced?
may we have surfaced?
may you have surfaced?
may they have surfaced? 	may I have been surfacing?
may you have been surfacing?
may he have been surfacing?
may we have been surfacing?
may you have been surfacing?
may they have been surfacing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I not surface?
may you not surface?
may he not surface?
may we not surface?
may you not surface?
may they not surface? 	may I not be surfacing?
may you not be surfacing?
may he not be surfacing?
may we not be surfacing?
may you not be surfacing?
may they not be surfacing? 	may I not have surfaced?
may you not have surfaced?
may he not have surfaced?
may we not have surfaced?
may you not have surfaced?
may they not have surfaced? 	may I not have been surfacing?
may you not have been surfacing?
may he not have been surfacing?
may we not have been surfacing?
may you not have been surfacing?
may they not have been surfacing?