English verb conjugation
CAN DOCUMENT

Regular verb: document - documented - documented

Affirmation

Simple form	V-ing form
I can document you can document he can document we can document you can document they can document	I can be documenting you can be documenting he can be documenting we can be documenting you can be documenting they can be documenting
Perfect	V-ing perfect
I can have documented you can have documented he can have documented we can have documented you can have documented they can have documented	I can have been documenting you can have been documenting he can have been documenting we can have been documenting you can have been documenting they can have been documenting

Negation

Simple form	V-ing form
I can't document you can't document he can't document we can't document you can't document they can't document	I can't be documenting you can't be documenting he can't be documenting we can't be documenting you can't be documenting they can't be documenting
Perfect	V-ing perfect
I can't have documented you can't have documented he can't have documented we can't have documented you can't have documented they can't have documented	I can't have been documenting you can't have been documenting he can't have been documenting we can't have been documenting you can't have been documenting they can't have been documenting

Interrogative form

Simple form	V-ing form
can I document? can you document? can he document? can we document? can you document? can they document?	can I be documenting? can you be documenting? can he be documenting? can we be documenting? can you be documenting? can they be documenting?
Perfect	V-ing perfect
can I have documented? can you have documented? can he have documented? can we have documented? can you have documented? can they have documented?	can I have been documenting? can you have been documenting? can he have been documenting? can we have been documenting? can you have been documenting? can they have been documenting?

Interro-negative form

Simple form	V-ing form
can't I document? can't you document? can't he document? can't we document? can't you document? can't they document?	can't I be documenting? can't you be documenting? can't he be documenting? can't we be documenting? can't you be documenting? can't they be documenting?
Perfect	V-ing perfect
can't I have documented? can't you have documented? can't he have documented? can't we have documented? can't you have documented? can't they have documented?	can't I have been documenting? can't you have been documenting? can't he have been documenting? can't we have been documenting? can't you have been documenting? can't they have been documenting?