English verb conjugation
CAN HORN

Regular verb: horn - horned - horned

Affirmation

Simple form	V-ing form
I can horn you can horn he can horn we can horn you can horn they can horn	I can be horning you can be horning he can be horning we can be horning you can be horning they can be horning
Perfect	V-ing perfect
I can have horned you can have horned he can have horned we can have horned you can have horned they can have horned	I can have been horning you can have been horning he can have been horning we can have been horning you can have been horning they can have been horning

Negation

Simple form	V-ing form
I can't horn you can't horn he can't horn we can't horn you can't horn they can't horn	I can't be horning you can't be horning he can't be horning we can't be horning you can't be horning they can't be horning
Perfect	V-ing perfect
I can't have horned you can't have horned he can't have horned we can't have horned you can't have horned they can't have horned	I can't have been horning you can't have been horning he can't have been horning we can't have been horning you can't have been horning they can't have been horning

Interrogative form

Simple form	V-ing form
can I horn? can you horn? can he horn? can we horn? can you horn? can they horn?	can I be horning? can you be horning? can he be horning? can we be horning? can you be horning? can they be horning?
Perfect	V-ing perfect
can I have horned? can you have horned? can he have horned? can we have horned? can you have horned? can they have horned?	can I have been horning? can you have been horning? can he have been horning? can we have been horning? can you have been horning? can they have been horning?

Interro-negative form

Simple form	V-ing form
can't I horn? can't you horn? can't he horn? can't we horn? can't you horn? can't they horn?	can't I be horning? can't you be horning? can't he be horning? can't we be horning? can't you be horning? can't they be horning?
Perfect	V-ing perfect
can't I have horned? can't you have horned? can't he have horned? can't we have horned? can't you have horned? can't they have horned?	can't I have been horning? can't you have been horning? can't he have been horning? can't we have been horning? can't you have been horning? can't they have been horning?