could clutter
Verbo regular: clutter - cluttered- cluttered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could clutter
you could clutter
she could clutter
we could clutter
you could clutter
they could clutter 	I could be cluttering
you could be cluttering
she could be cluttering
we could be cluttering
you could be cluttering
they could be cluttering	I could have cluttered
you could have cluttered
she could have cluttered
we could have cluttered
you could have cluttered
they could have cluttered	I could have been cluttering
you could have been cluttering
she could have been cluttering
we could have been cluttering
you could have been cluttering
they could have been cluttering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not clutter
you could not clutter
she could not clutter
we could not clutter
you could not clutter
they could not clutter 	I could not be cluttering
you could not be cluttering
she could not be cluttering
we could not be cluttering
you could not be cluttering
they could not be cluttering	I could not have cluttered
you could not have cluttered
she could not have cluttered
we could not have cluttered
you could not have cluttered
they could not have cluttered	I could not have been cluttering
you could not have been cluttering
she could not have been cluttering
we could not have been cluttering
you could not have been cluttering
they could not have been cluttering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I clutter?
could you clutter?
could she clutter?
could we clutter?
could you clutter?
could they clutter? 	could I be cluttering?
could you be cluttering?
could she be cluttering?
could we be cluttering?
could you be cluttering?
could they be cluttering? 	could I have cluttered?
could you have cluttered?
could she have cluttered?
could we have cluttered?
could you have cluttered?
could they have cluttered? 	could I have been cluttering?
could you have been cluttering?
could she have been cluttering?
could we have been cluttering?
could you have been cluttering?
could they have been cluttering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not clutter?
could you not clutter?
could she not clutter?
could we not clutter?
could you not clutter?
could they not clutter? 	could I not be cluttering?
could you not be cluttering?
could she not be cluttering?
could we not be cluttering?
could you not be cluttering?
could they not be cluttering? 	could I not have cluttered?
could you not have cluttered?
could she not have cluttered?
could we not have cluttered?
could you not have cluttered?
could they not have cluttered? 	could I not have been cluttering?
could you not have been cluttering?
could she not have been cluttering?
could we not have been cluttering?
could you not have been cluttering?
could they not have been cluttering?