can defend
Verbo regular: defend - defended- defended

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can defend
you can defend
he can defend
we can defend
you can defend
they can defend 	I can be defending
you can be defending
he can be defending
we can be defending
you can be defending
they can be defending	I can have defended
you can have defended
he can have defended
we can have defended
you can have defended
they can have defended	I can have been defending
you can have been defending
he can have been defending
we can have been defending
you can have been defending
they can have been defending	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot defend
you cannot defend
he cannot defend
we cannot defend
you cannot defend
they cannot defend 	I cannot be defending
you cannot be defending
he cannot be defending
we cannot be defending
you cannot be defending
they cannot be defending	I cannot have defended
you cannot have defended
he cannot have defended
we cannot have defended
you cannot have defended
they cannot have defended	I cannot have been defending
you cannot have been defending
he cannot have been defending
we cannot have been defending
you cannot have been defending
they cannot have been defending	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I defend?
can you defend?
can he defend?
can we defend?
can you defend?
can they defend? 	can I be defending?
can you be defending?
can he be defending?
can we be defending?
can you be defending?
can they be defending? 	can I have defended?
can you have defended?
can he have defended?
can we have defended?
can you have defended?
can they have defended? 	can I have been defending?
can you have been defending?
can he have been defending?
can we have been defending?
can you have been defending?
can they have been defending? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not defend?
can you not defend?
can he not defend?
can we not defend?
can you not defend?
can they not defend? 	can I not be defending?
can you not be defending?
can he not be defending?
can we not be defending?
can you not be defending?
can they not be defending? 	can I not have defended?
can you not have defended?
can he not have defended?
can we not have defended?
can you not have defended?
can they not have defended? 	can I not have been defending?
can you not have been defending?
can he not have been defending?
can we not have been defending?
can you not have been defending?
can they not have been defending?