English verb conjugation
CAN JERK

Regular verb: jerk - jerked - jerked

Affirmation

Simple form	V-ing form
I can jerk you can jerk he can jerk we can jerk you can jerk they can jerk	I can be jerking you can be jerking he can be jerking we can be jerking you can be jerking they can be jerking
Perfect	V-ing perfect
I can have jerked you can have jerked he can have jerked we can have jerked you can have jerked they can have jerked	I can have been jerking you can have been jerking he can have been jerking we can have been jerking you can have been jerking they can have been jerking

Negation

Simple form	V-ing form
I cannot jerk you cannot jerk he cannot jerk we cannot jerk you cannot jerk they cannot jerk	I cannot be jerking you cannot be jerking he cannot be jerking we cannot be jerking you cannot be jerking they cannot be jerking
Perfect	V-ing perfect
I cannot have jerked you cannot have jerked he cannot have jerked we cannot have jerked you cannot have jerked they cannot have jerked	I cannot have been jerking you cannot have been jerking he cannot have been jerking we cannot have been jerking you cannot have been jerking they cannot have been jerking

Interrogative form

Simple form	V-ing form
can I jerk? can you jerk? can he jerk? can we jerk? can you jerk? can they jerk?	can I be jerking? can you be jerking? can he be jerking? can we be jerking? can you be jerking? can they be jerking?
Perfect	V-ing perfect
can I have jerked? can you have jerked? can he have jerked? can we have jerked? can you have jerked? can they have jerked?	can I have been jerking? can you have been jerking? can he have been jerking? can we have been jerking? can you have been jerking? can they have been jerking?

Interro-negative form

Simple form	V-ing form
can I not jerk? can you not jerk? can he not jerk? can we not jerk? can you not jerk? can they not jerk?	can I not be jerking? can you not be jerking? can he not be jerking? can we not be jerking? can you not be jerking? can they not be jerking?
Perfect	V-ing perfect
can I not have jerked? can you not have jerked? can he not have jerked? can we not have jerked? can you not have jerked? can they not have jerked?	can I not have been jerking? can you not have been jerking? can he not have been jerking? can we not have been jerking? can you not have been jerking? can they not have been jerking?