can overstrain
Verbo regular: overstrain - overstrained- overstrained

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can overstrain
you can overstrain
he can overstrain
we can overstrain
you can overstrain
they can overstrain 	I can be overstraining
you can be overstraining
he can be overstraining
we can be overstraining
you can be overstraining
they can be overstraining	I can have overstrained
you can have overstrained
he can have overstrained
we can have overstrained
you can have overstrained
they can have overstrained	I can have been overstraining
you can have been overstraining
he can have been overstraining
we can have been overstraining
you can have been overstraining
they can have been overstraining	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot overstrain
you cannot overstrain
he cannot overstrain
we cannot overstrain
you cannot overstrain
they cannot overstrain 	I cannot be overstraining
you cannot be overstraining
he cannot be overstraining
we cannot be overstraining
you cannot be overstraining
they cannot be overstraining	I cannot have overstrained
you cannot have overstrained
he cannot have overstrained
we cannot have overstrained
you cannot have overstrained
they cannot have overstrained	I cannot have been overstraining
you cannot have been overstraining
he cannot have been overstraining
we cannot have been overstraining
you cannot have been overstraining
they cannot have been overstraining	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I overstrain?
can you overstrain?
can he overstrain?
can we overstrain?
can you overstrain?
can they overstrain? 	can I be overstraining?
can you be overstraining?
can he be overstraining?
can we be overstraining?
can you be overstraining?
can they be overstraining? 	can I have overstrained?
can you have overstrained?
can he have overstrained?
can we have overstrained?
can you have overstrained?
can they have overstrained? 	can I have been overstraining?
can you have been overstraining?
can he have been overstraining?
can we have been overstraining?
can you have been overstraining?
can they have been overstraining? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not overstrain?
can you not overstrain?
can he not overstrain?
can we not overstrain?
can you not overstrain?
can they not overstrain? 	can I not be overstraining?
can you not be overstraining?
can he not be overstraining?
can we not be overstraining?
can you not be overstraining?
can they not be overstraining? 	can I not have overstrained?
can you not have overstrained?
can he not have overstrained?
can we not have overstrained?
can you not have overstrained?
can they not have overstrained? 	can I not have been overstraining?
can you not have been overstraining?
can he not have been overstraining?
can we not have been overstraining?
can you not have been overstraining?
can they not have been overstraining?