can chain
Regular verb: chain - chained- chained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can chain
you can chain
he can chain
we can chain
you can chain
they can chain 	I can be chaining
you can be chaining
he can be chaining
we can be chaining
you can be chaining
they can be chaining	I can have chained
you can have chained
he can have chained
we can have chained
you can have chained
they can have chained	I can have been chaining
you can have been chaining
he can have been chaining
we can have been chaining
you can have been chaining
they can have been chaining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't chain
you can't chain
he can't chain
we can't chain
you can't chain
they can't chain 	I can't be chaining
you can't be chaining
he can't be chaining
we can't be chaining
you can't be chaining
they can't be chaining	I can't have chained
you can't have chained
he can't have chained
we can't have chained
you can't have chained
they can't have chained	I can't have been chaining
you can't have been chaining
he can't have been chaining
we can't have been chaining
you can't have been chaining
they can't have been chaining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I chain?
can you chain?
can he chain?
can we chain?
can you chain?
can they chain? 	can I be chaining?
can you be chaining?
can he be chaining?
can we be chaining?
can you be chaining?
can they be chaining? 	can I have chained?
can you have chained?
can he have chained?
can we have chained?
can you have chained?
can they have chained? 	can I have been chaining?
can you have been chaining?
can he have been chaining?
can we have been chaining?
can you have been chaining?
can they have been chaining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I chain?
can't you chain?
can't he chain?
can't we chain?
can't you chain?
can't they chain? 	can't I be chaining?
can't you be chaining?
can't he be chaining?
can't we be chaining?
can't you be chaining?
can't they be chaining? 	can't I have chained?
can't you have chained?
can't he have chained?
can't we have chained?
can't you have chained?
can't they have chained? 	can't I have been chaining?
can't you have been chaining?
can't he have been chaining?
can't we have been chaining?
can't you have been chaining?
can't they have been chaining?