could aver
Verbo regular: aver - averred- averred

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could aver
you could aver
he could aver
we could aver
you could aver
they could aver 	I could be averring
you could be averring
he could be averring
we could be averring
you could be averring
they could be averring	I could have averred
you could have averred
he could have averred
we could have averred
you could have averred
they could have averred	I could have been averring
you could have been averring
he could have been averring
we could have been averring
you could have been averring
they could have been averring	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't aver
you couldn't aver
he couldn't aver
we couldn't aver
you couldn't aver
they couldn't aver 	I couldn't be averring
you couldn't be averring
he couldn't be averring
we couldn't be averring
you couldn't be averring
they couldn't be averring	I couldn't have averred
you couldn't have averred
he couldn't have averred
we couldn't have averred
you couldn't have averred
they couldn't have averred	I couldn't have been averring
you couldn't have been averring
he couldn't have been averring
we couldn't have been averring
you couldn't have been averring
they couldn't have been averring	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I aver?
could you aver?
could he aver?
could we aver?
could you aver?
could they aver? 	could I be averring?
could you be averring?
could he be averring?
could we be averring?
could you be averring?
could they be averring? 	could I have averred?
could you have averred?
could he have averred?
could we have averred?
could you have averred?
could they have averred? 	could I have been averring?
could you have been averring?
could he have been averring?
could we have been averring?
could you have been averring?
could they have been averring? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I aver?
couldn't you aver?
couldn't he aver?
couldn't we aver?
couldn't you aver?
couldn't they aver? 	couldn't I be averring?
couldn't you be averring?
couldn't he be averring?
couldn't we be averring?
couldn't you be averring?
couldn't they be averring? 	couldn't I have averred?
couldn't you have averred?
couldn't he have averred?
couldn't we have averred?
couldn't you have averred?
couldn't they have averred? 	couldn't I have been averring?
couldn't you have been averring?
couldn't he have been averring?
couldn't we have been averring?
couldn't you have been averring?
couldn't they have been averring?