may abstain
Verbo regular: abstain - abstained- abstained

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may abstain
you may abstain
he may abstain
we may abstain
you may abstain
they may abstain 	I may be abstaining
you may be abstaining
he may be abstaining
we may be abstaining
you may be abstaining
they may be abstaining	I may have abstained
you may have abstained
he may have abstained
we may have abstained
you may have abstained
they may have abstained	I may have been abstaining
you may have been abstaining
he may have been abstaining
we may have been abstaining
you may have been abstaining
they may have been abstaining	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not abstain
you may not abstain
he may not abstain
we may not abstain
you may not abstain
they may not abstain 	I may not be abstaining
you may not be abstaining
he may not be abstaining
we may not be abstaining
you may not be abstaining
they may not be abstaining	I may not have abstained
you may not have abstained
he may not have abstained
we may not have abstained
you may not have abstained
they may not have abstained	I may not have been abstaining
you may not have been abstaining
he may not have been abstaining
we may not have been abstaining
you may not have been abstaining
they may not have been abstaining	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I abstain?
may you abstain?
may he abstain?
may we abstain?
may you abstain?
may they abstain? 	may I be abstaining?
may you be abstaining?
may he be abstaining?
may we be abstaining?
may you be abstaining?
may they be abstaining? 	may I have abstained?
may you have abstained?
may he have abstained?
may we have abstained?
may you have abstained?
may they have abstained? 	may I have been abstaining?
may you have been abstaining?
may he have been abstaining?
may we have been abstaining?
may you have been abstaining?
may they have been abstaining? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I not abstain?
may you not abstain?
may he not abstain?
may we not abstain?
may you not abstain?
may they not abstain? 	may I not be abstaining?
may you not be abstaining?
may he not be abstaining?
may we not be abstaining?
may you not be abstaining?
may they not be abstaining? 	may I not have abstained?
may you not have abstained?
may he not have abstained?
may we not have abstained?
may you not have abstained?
may they not have abstained? 	may I not have been abstaining?
may you not have been abstaining?
may he not have been abstaining?
may we not have been abstaining?
may you not have been abstaining?
may they not have been abstaining?