can shutter
Verbo regular: shutter - shuttered- shuttered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can shutter
you can shutter
he can shutter
we can shutter
you can shutter
they can shutter 	I can be shuttering
you can be shuttering
he can be shuttering
we can be shuttering
you can be shuttering
they can be shuttering	I can have shuttered
you can have shuttered
he can have shuttered
we can have shuttered
you can have shuttered
they can have shuttered	I can have been shuttering
you can have been shuttering
he can have been shuttering
we can have been shuttering
you can have been shuttering
they can have been shuttering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot shutter
you cannot shutter
he cannot shutter
we cannot shutter
you cannot shutter
they cannot shutter 	I cannot be shuttering
you cannot be shuttering
he cannot be shuttering
we cannot be shuttering
you cannot be shuttering
they cannot be shuttering	I cannot have shuttered
you cannot have shuttered
he cannot have shuttered
we cannot have shuttered
you cannot have shuttered
they cannot have shuttered	I cannot have been shuttering
you cannot have been shuttering
he cannot have been shuttering
we cannot have been shuttering
you cannot have been shuttering
they cannot have been shuttering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I shutter?
can you shutter?
can he shutter?
can we shutter?
can you shutter?
can they shutter? 	can I be shuttering?
can you be shuttering?
can he be shuttering?
can we be shuttering?
can you be shuttering?
can they be shuttering? 	can I have shuttered?
can you have shuttered?
can he have shuttered?
can we have shuttered?
can you have shuttered?
can they have shuttered? 	can I have been shuttering?
can you have been shuttering?
can he have been shuttering?
can we have been shuttering?
can you have been shuttering?
can they have been shuttering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not shutter?
can you not shutter?
can he not shutter?
can we not shutter?
can you not shutter?
can they not shutter? 	can I not be shuttering?
can you not be shuttering?
can he not be shuttering?
can we not be shuttering?
can you not be shuttering?
can they not be shuttering? 	can I not have shuttered?
can you not have shuttered?
can he not have shuttered?
can we not have shuttered?
can you not have shuttered?
can they not have shuttered? 	can I not have been shuttering?
can you not have been shuttering?
can he not have been shuttering?
can we not have been shuttering?
can you not have been shuttering?
can they not have been shuttering?