can assert
Verbo regular: assert - asserted- asserted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can assert
you can assert
she can assert
we can assert
you can assert
they can assert 	I can be asserting
you can be asserting
she can be asserting
we can be asserting
you can be asserting
they can be asserting	I can have asserted
you can have asserted
she can have asserted
we can have asserted
you can have asserted
they can have asserted	I can have been asserting
you can have been asserting
she can have been asserting
we can have been asserting
you can have been asserting
they can have been asserting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't assert
you can't assert
she can't assert
we can't assert
you can't assert
they can't assert 	I can't be asserting
you can't be asserting
she can't be asserting
we can't be asserting
you can't be asserting
they can't be asserting	I can't have asserted
you can't have asserted
she can't have asserted
we can't have asserted
you can't have asserted
they can't have asserted	I can't have been asserting
you can't have been asserting
she can't have been asserting
we can't have been asserting
you can't have been asserting
they can't have been asserting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I assert?
can you assert?
can she assert?
can we assert?
can you assert?
can they assert? 	can I be asserting?
can you be asserting?
can she be asserting?
can we be asserting?
can you be asserting?
can they be asserting? 	can I have asserted?
can you have asserted?
can she have asserted?
can we have asserted?
can you have asserted?
can they have asserted? 	can I have been asserting?
can you have been asserting?
can she have been asserting?
can we have been asserting?
can you have been asserting?
can they have been asserting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I assert?
can't you assert?
can't she assert?
can't we assert?
can't you assert?
can't they assert? 	can't I be asserting?
can't you be asserting?
can't she be asserting?
can't we be asserting?
can't you be asserting?
can't they be asserting? 	can't I have asserted?
can't you have asserted?
can't she have asserted?
can't we have asserted?
can't you have asserted?
can't they have asserted? 	can't I have been asserting?
can't you have been asserting?
can't she have been asserting?
can't we have been asserting?
can't you have been asserting?
can't they have been asserting?