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 cannot thorn you cannot thorn he cannot thorn we cannot thorn you cannot thorn they cannot thorn	I cannot be thorning you cannot be thorning he cannot be thorning we cannot be thorning you cannot be thorning they cannot be thorning
Perfect	V-ing perfect
I cannot have thorned you cannot have thorned he cannot have thorned we cannot have thorned you cannot have thorned they cannot have thorned	I cannot have been thorning you cannot have been thorning he cannot have been thorning we cannot have been thorning you cannot have been thorning they cannot 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 I not thorn? can you not thorn? can he not thorn? can we not thorn? can you not thorn? can they not thorn?	can I not be thorning? can you not be thorning? can he not be thorning? can we not be thorning? can you not be thorning? can they not be thorning?
Perfect	V-ing perfect
can I not have thorned? can you not have thorned? can he not have thorned? can we not have thorned? can you not have thorned? can they not have thorned?	can I not have been thorning? can you not have been thorning? can he not have been thorning? can we not have been thorning? can you not have been thorning? can they not have been thorning?