can refrain
Verbo regular: refrain - refrained- refrained

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can refrain
you can refrain
he can refrain
we can refrain
you can refrain
they can refrain 	I can be refraining
you can be refraining
he can be refraining
we can be refraining
you can be refraining
they can be refraining	I can have refrained
you can have refrained
he can have refrained
we can have refrained
you can have refrained
they can have refrained	I can have been refraining
you can have been refraining
he can have been refraining
we can have been refraining
you can have been refraining
they can have been refraining	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't refrain
you can't refrain
he can't refrain
we can't refrain
you can't refrain
they can't refrain 	I can't be refraining
you can't be refraining
he can't be refraining
we can't be refraining
you can't be refraining
they can't be refraining	I can't have refrained
you can't have refrained
he can't have refrained
we can't have refrained
you can't have refrained
they can't have refrained	I can't have been refraining
you can't have been refraining
he can't have been refraining
we can't have been refraining
you can't have been refraining
they can't have been refraining	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I refrain?
can you refrain?
can he refrain?
can we refrain?
can you refrain?
can they refrain? 	can I be refraining?
can you be refraining?
can he be refraining?
can we be refraining?
can you be refraining?
can they be refraining? 	can I have refrained?
can you have refrained?
can he have refrained?
can we have refrained?
can you have refrained?
can they have refrained? 	can I have been refraining?
can you have been refraining?
can he have been refraining?
can we have been refraining?
can you have been refraining?
can they have been refraining? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I refrain?
can't you refrain?
can't he refrain?
can't we refrain?
can't you refrain?
can't they refrain? 	can't I be refraining?
can't you be refraining?
can't he be refraining?
can't we be refraining?
can't you be refraining?
can't they be refraining? 	can't I have refrained?
can't you have refrained?
can't he have refrained?
can't we have refrained?
can't you have refrained?
can't they have refrained? 	can't I have been refraining?
can't you have been refraining?
can't he have been refraining?
can't we have been refraining?
can't you have been refraining?
can't they have been refraining?