English verb conjugation
CAN AUTOGRAPH

Regular verb: autograph - autographed - autographed

Affirmation

Simple form	V-ing form
I can autograph you can autograph she can autograph we can autograph you can autograph they can autograph	I can be autographing you can be autographing she can be autographing we can be autographing you can be autographing they can be autographing
Perfect	V-ing perfect
I can have autographed you can have autographed she can have autographed we can have autographed you can have autographed they can have autographed	I can have been autographing you can have been autographing she can have been autographing we can have been autographing you can have been autographing they can have been autographing

Negation

Simple form	V-ing form
I can't autograph you can't autograph she can't autograph we can't autograph you can't autograph they can't autograph	I can't be autographing you can't be autographing she can't be autographing we can't be autographing you can't be autographing they can't be autographing
Perfect	V-ing perfect
I can't have autographed you can't have autographed she can't have autographed we can't have autographed you can't have autographed they can't have autographed	I can't have been autographing you can't have been autographing she can't have been autographing we can't have been autographing you can't have been autographing they can't have been autographing

Interrogative form

Simple form	V-ing form
can I autograph? can you autograph? can she autograph? can we autograph? can you autograph? can they autograph?	can I be autographing? can you be autographing? can she be autographing? can we be autographing? can you be autographing? can they be autographing?
Perfect	V-ing perfect
can I have autographed? can you have autographed? can she have autographed? can we have autographed? can you have autographed? can they have autographed?	can I have been autographing? can you have been autographing? can she have been autographing? can we have been autographing? can you have been autographing? can they have been autographing?

Interro-negative form

Simple form	V-ing form
can't I autograph? can't you autograph? can't she autograph? can't we autograph? can't you autograph? can't they autograph?	can't I be autographing? can't you be autographing? can't she be autographing? can't we be autographing? can't you be autographing? can't they be autographing?
Perfect	V-ing perfect
can't I have autographed? can't you have autographed? can't she have autographed? can't we have autographed? can't you have autographed? can't they have autographed?	can't I have been autographing? can't you have been autographing? can't she have been autographing? can't we have been autographing? can't you have been autographing? can't they have been autographing?