can shackle
Regular verb: shackle - shackled- shackled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can shackle
you can shackle
she can shackle
we can shackle
you can shackle
they can shackle 	I can be shackling
you can be shackling
she can be shackling
we can be shackling
you can be shackling
they can be shackling	I can have shackled
you can have shackled
she can have shackled
we can have shackled
you can have shackled
they can have shackled	I can have been shackling
you can have been shackling
she can have been shackling
we can have been shackling
you can have been shackling
they can have been shackling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't shackle
you can't shackle
she can't shackle
we can't shackle
you can't shackle
they can't shackle 	I can't be shackling
you can't be shackling
she can't be shackling
we can't be shackling
you can't be shackling
they can't be shackling	I can't have shackled
you can't have shackled
she can't have shackled
we can't have shackled
you can't have shackled
they can't have shackled	I can't have been shackling
you can't have been shackling
she can't have been shackling
we can't have been shackling
you can't have been shackling
they can't have been shackling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I shackle?
can you shackle?
can she shackle?
can we shackle?
can you shackle?
can they shackle? 	can I be shackling?
can you be shackling?
can she be shackling?
can we be shackling?
can you be shackling?
can they be shackling? 	can I have shackled?
can you have shackled?
can she have shackled?
can we have shackled?
can you have shackled?
can they have shackled? 	can I have been shackling?
can you have been shackling?
can she have been shackling?
can we have been shackling?
can you have been shackling?
can they have been shackling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I shackle?
can't you shackle?
can't she shackle?
can't we shackle?
can't you shackle?
can't they shackle? 	can't I be shackling?
can't you be shackling?
can't she be shackling?
can't we be shackling?
can't you be shackling?
can't they be shackling? 	can't I have shackled?
can't you have shackled?
can't she have shackled?
can't we have shackled?
can't you have shackled?
can't they have shackled? 	can't I have been shackling?
can't you have been shackling?
can't she have been shackling?
can't we have been shackling?
can't you have been shackling?
can't they have been shackling?