English verb conjugation
CAN PATENT

Regular verb: patent - patented - patented

Affirmation

Simple form	V-ing form
I can patent you can patent he can patent we can patent you can patent they can patent	I can be patenting you can be patenting he can be patenting we can be patenting you can be patenting they can be patenting
Perfect	V-ing perfect
I can have patented you can have patented he can have patented we can have patented you can have patented they can have patented	I can have been patenting you can have been patenting he can have been patenting we can have been patenting you can have been patenting they can have been patenting

Negation

Simple form	V-ing form
I cannot patent you cannot patent he cannot patent we cannot patent you cannot patent they cannot patent	I cannot be patenting you cannot be patenting he cannot be patenting we cannot be patenting you cannot be patenting they cannot be patenting
Perfect	V-ing perfect
I cannot have patented you cannot have patented he cannot have patented we cannot have patented you cannot have patented they cannot have patented	I cannot have been patenting you cannot have been patenting he cannot have been patenting we cannot have been patenting you cannot have been patenting they cannot have been patenting

Interrogative form

Simple form	V-ing form
can I patent? can you patent? can he patent? can we patent? can you patent? can they patent?	can I be patenting? can you be patenting? can he be patenting? can we be patenting? can you be patenting? can they be patenting?
Perfect	V-ing perfect
can I have patented? can you have patented? can he have patented? can we have patented? can you have patented? can they have patented?	can I have been patenting? can you have been patenting? can he have been patenting? can we have been patenting? can you have been patenting? can they have been patenting?

Interro-negative form

Simple form	V-ing form
can I not patent? can you not patent? can he not patent? can we not patent? can you not patent? can they not patent?	can I not be patenting? can you not be patenting? can he not be patenting? can we not be patenting? can you not be patenting? can they not be patenting?
Perfect	V-ing perfect
can I not have patented? can you not have patented? can he not have patented? can we not have patented? can you not have patented? can they not have patented?	can I not have been patenting? can you not have been patenting? can he not have been patenting? can we not have been patenting? can you not have been patenting? can they not have been patenting?