English verb conjugation
CAN CAPTION

Regular verb: caption - captioned - captioned

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?