can disk
Regular verb: disk - disked- disked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can disk
you can disk
he can disk
we can disk
you can disk
they can disk 	I can be disking
you can be disking
he can be disking
we can be disking
you can be disking
they can be disking	I can have disked
you can have disked
he can have disked
we can have disked
you can have disked
they can have disked	I can have been disking
you can have been disking
he can have been disking
we can have been disking
you can have been disking
they can have been disking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot disk
you cannot disk
he cannot disk
we cannot disk
you cannot disk
they cannot disk 	I cannot be disking
you cannot be disking
he cannot be disking
we cannot be disking
you cannot be disking
they cannot be disking	I cannot have disked
you cannot have disked
he cannot have disked
we cannot have disked
you cannot have disked
they cannot have disked	I cannot have been disking
you cannot have been disking
he cannot have been disking
we cannot have been disking
you cannot have been disking
they cannot have been disking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I disk?
can you disk?
can he disk?
can we disk?
can you disk?
can they disk? 	can I be disking?
can you be disking?
can he be disking?
can we be disking?
can you be disking?
can they be disking? 	can I have disked?
can you have disked?
can he have disked?
can we have disked?
can you have disked?
can they have disked? 	can I have been disking?
can you have been disking?
can he have been disking?
can we have been disking?
can you have been disking?
can they have been disking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not disk?
can you not disk?
can he not disk?
can we not disk?
can you not disk?
can they not disk? 	can I not be disking?
can you not be disking?
can he not be disking?
can we not be disking?
can you not be disking?
can they not be disking? 	can I not have disked?
can you not have disked?
can he not have disked?
can we not have disked?
can you not have disked?
can they not have disked? 	can I not have been disking?
can you not have been disking?
can he not have been disking?
can we not have been disking?
can you not have been disking?
can they not have been disking?