English verb conjugation
CAN THORN

Regular verb: thorn - thorned - thorned

Affirmation

Simple form	V-ing form
I can thorn you can thorn he can thorn we can thorn you can thorn they can thorn	I can be thorning you can be thorning he can be thorning we can be thorning you can be thorning they can be thorning
Perfect	V-ing perfect
I can have thorned you can have thorned he can have thorned we can have thorned you can have thorned they can have thorned	I can have been thorning you can have been thorning he can have been thorning we can have been thorning you can have been thorning they can have been thorning

Negation

Simple form	V-ing form
I can't thorn you can't thorn he can't thorn we can't thorn you can't thorn they can't thorn	I can't be thorning you can't be thorning he can't be thorning we can't be thorning you can't be thorning they can't be thorning
Perfect	V-ing perfect
I can't have thorned you can't have thorned he can't have thorned we can't have thorned you can't have thorned they can't have thorned	I can't have been thorning you can't have been thorning he can't have been thorning we can't have been thorning you can't have been thorning they can't have been thorning

Interrogative form

Simple form	V-ing form
can I thorn? can you thorn? can he thorn? can we thorn? can you thorn? can they thorn?	can I be thorning? can you be thorning? can he be thorning? can we be thorning? can you be thorning? can they be thorning?
Perfect	V-ing perfect
can I have thorned? can you have thorned? can he have thorned? can we have thorned? can you have thorned? can they have thorned?	can I have been thorning? can you have been thorning? can he have been thorning? can we have been thorning? can you have been thorning? can they have been thorning?

Interro-negative form

Simple form	V-ing form
can't I thorn? can't you thorn? can't he thorn? can't we thorn? can't you thorn? can't they thorn?	can't I be thorning? can't you be thorning? can't he be thorning? can't we be thorning? can't you be thorning? can't they be thorning?
Perfect	V-ing perfect
can't I have thorned? can't you have thorned? can't he have thorned? can't we have thorned? can't you have thorned? can't they have thorned?	can't I have been thorning? can't you have been thorning? can't he have been thorning? can't we have been thorning? can't you have been thorning? can't they have been thorning?