can caption
Regular verb: caption - captioned- captioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can caption
you can caption
he can caption
we can caption
you can caption
they can caption 	I can be captioning
you can be captioning
he can be captioning
we can be captioning
you can be captioning
they can be captioning	I can have captioned
you can have captioned
he can have captioned
we can have captioned
you can have captioned
they can have captioned	I can have been captioning
you can have been captioning
he can have been captioning
we can have been captioning
you can have been captioning
they can have been captioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot caption
you cannot caption
he cannot caption
we cannot caption
you cannot caption
they cannot caption 	I cannot be captioning
you cannot be captioning
he cannot be captioning
we cannot be captioning
you cannot be captioning
they cannot be captioning	I cannot have captioned
you cannot have captioned
he cannot have captioned
we cannot have captioned
you cannot have captioned
they cannot have captioned	I cannot have been captioning
you cannot have been captioning
he cannot have been captioning
we cannot have been captioning
you cannot have been captioning
they cannot have been captioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I caption?
can you caption?
can he caption?
can we caption?
can you caption?
can they caption? 	can I be captioning?
can you be captioning?
can he be captioning?
can we be captioning?
can you be captioning?
can they be captioning? 	can I have captioned?
can you have captioned?
can he have captioned?
can we have captioned?
can you have captioned?
can they have captioned? 	can I have been captioning?
can you have been captioning?
can he have been captioning?
can we have been captioning?
can you have been captioning?
can they have been captioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not caption?
can you not caption?
can he not caption?
can we not caption?
can you not caption?
can they not caption? 	can I not be captioning?
can you not be captioning?
can he not be captioning?
can we not be captioning?
can you not be captioning?
can they not be captioning? 	can I not have captioned?
can you not have captioned?
can he not have captioned?
can we not have captioned?
can you not have captioned?
can they not have captioned? 	can I not have been captioning?
can you not have been captioning?
can he not have been captioning?
can we not have been captioning?
can you not have been captioning?
can they not have been captioning?