can shutter
Regular verb: shutter - shuttered- shuttered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't shutter
you can't shutter
he can't shutter
we can't shutter
you can't shutter
they can't shutter 	I can't be shuttering
you can't be shuttering
he can't be shuttering
we can't be shuttering
you can't be shuttering
they can't be shuttering	I can't have shuttered
you can't have shuttered
he can't have shuttered
we can't have shuttered
you can't have shuttered
they can't have shuttered	I can't have been shuttering
you can't have been shuttering
he can't have been shuttering
we can't have been shuttering
you can't have been shuttering
they can't have been shuttering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I shutter?
can't you shutter?
can't he shutter?
can't we shutter?
can't you shutter?
can't they shutter? 	can't I be shuttering?
can't you be shuttering?
can't he be shuttering?
can't we be shuttering?
can't you be shuttering?
can't they be shuttering? 	can't I have shuttered?
can't you have shuttered?
can't he have shuttered?
can't we have shuttered?
can't you have shuttered?
can't they have shuttered? 	can't I have been shuttering?
can't you have been shuttering?
can't he have been shuttering?
can't we have been shuttering?
can't you have been shuttering?
can't they have been shuttering?