English verb conjugation
CAN CARD-INDEX

Regular verb: card-index - card-indexed - card-indexed

Affirmation

Simple form	V-ing form
I can card-index you can card-index he can card-index we can card-index you can card-index they can card-index	I can be card-indexing you can be card-indexing he can be card-indexing we can be card-indexing you can be card-indexing they can be card-indexing
Perfect	V-ing perfect
I can have card-indexed you can have card-indexed he can have card-indexed we can have card-indexed you can have card-indexed they can have card-indexed	I can have been card-indexing you can have been card-indexing he can have been card-indexing we can have been card-indexing you can have been card-indexing they can have been card-indexing

Negation

Simple form	V-ing form
I cannot card-index you cannot card-index he cannot card-index we cannot card-index you cannot card-index they cannot card-index	I cannot be card-indexing you cannot be card-indexing he cannot be card-indexing we cannot be card-indexing you cannot be card-indexing they cannot be card-indexing
Perfect	V-ing perfect
I cannot have card-indexed you cannot have card-indexed he cannot have card-indexed we cannot have card-indexed you cannot have card-indexed they cannot have card-indexed	I cannot have been card-indexing you cannot have been card-indexing he cannot have been card-indexing we cannot have been card-indexing you cannot have been card-indexing they cannot have been card-indexing

Interrogative form

Simple form	V-ing form
can I card-index? can you card-index? can he card-index? can we card-index? can you card-index? can they card-index?	can I be card-indexing? can you be card-indexing? can he be card-indexing? can we be card-indexing? can you be card-indexing? can they be card-indexing?
Perfect	V-ing perfect
can I have card-indexed? can you have card-indexed? can he have card-indexed? can we have card-indexed? can you have card-indexed? can they have card-indexed?	can I have been card-indexing? can you have been card-indexing? can he have been card-indexing? can we have been card-indexing? can you have been card-indexing? can they have been card-indexing?

Interro-negative form

Simple form	V-ing form
can I not card-index? can you not card-index? can he not card-index? can we not card-index? can you not card-index? can they not card-index?	can I not be card-indexing? can you not be card-indexing? can he not be card-indexing? can we not be card-indexing? can you not be card-indexing? can they not be card-indexing?
Perfect	V-ing perfect
can I not have card-indexed? can you not have card-indexed? can he not have card-indexed? can we not have card-indexed? can you not have card-indexed? can they not have card-indexed?	can I not have been card-indexing? can you not have been card-indexing? can he not have been card-indexing? can we not have been card-indexing? can you not have been card-indexing? can they not have been card-indexing?