can stone
Regular verb: stone - stoned- stoned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can stone
you can stone
she can stone
we can stone
you can stone
they can stone 	I can be stoning
you can be stoning
she can be stoning
we can be stoning
you can be stoning
they can be stoning	I can have stoned
you can have stoned
she can have stoned
we can have stoned
you can have stoned
they can have stoned	I can have been stoning
you can have been stoning
she can have been stoning
we can have been stoning
you can have been stoning
they can have been stoning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't stone
you can't stone
she can't stone
we can't stone
you can't stone
they can't stone 	I can't be stoning
you can't be stoning
she can't be stoning
we can't be stoning
you can't be stoning
they can't be stoning	I can't have stoned
you can't have stoned
she can't have stoned
we can't have stoned
you can't have stoned
they can't have stoned	I can't have been stoning
you can't have been stoning
she can't have been stoning
we can't have been stoning
you can't have been stoning
they can't have been stoning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I stone?
can you stone?
can she stone?
can we stone?
can you stone?
can they stone? 	can I be stoning?
can you be stoning?
can she be stoning?
can we be stoning?
can you be stoning?
can they be stoning? 	can I have stoned?
can you have stoned?
can she have stoned?
can we have stoned?
can you have stoned?
can they have stoned? 	can I have been stoning?
can you have been stoning?
can she have been stoning?
can we have been stoning?
can you have been stoning?
can they have been stoning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I stone?
can't you stone?
can't she stone?
can't we stone?
can't you stone?
can't they stone? 	can't I be stoning?
can't you be stoning?
can't she be stoning?
can't we be stoning?
can't you be stoning?
can't they be stoning? 	can't I have stoned?
can't you have stoned?
can't she have stoned?
can't we have stoned?
can't you have stoned?
can't they have stoned? 	can't I have been stoning?
can't you have been stoning?
can't she have been stoning?
can't we have been stoning?
can't you have been stoning?
can't they have been stoning?