English verb conjugation
CAN CONK

Regular verb: conk - conked - conked

Affirmation

Simple form	V-ing form
I can conk you can conk he can conk we can conk you can conk they can conk	I can be conking you can be conking he can be conking we can be conking you can be conking they can be conking
Perfect	V-ing perfect
I can have conked you can have conked he can have conked we can have conked you can have conked they can have conked	I can have been conking you can have been conking he can have been conking we can have been conking you can have been conking they can have been conking

Negation

Simple form	V-ing form
I cannot conk you cannot conk he cannot conk we cannot conk you cannot conk they cannot conk	I cannot be conking you cannot be conking he cannot be conking we cannot be conking you cannot be conking they cannot be conking
Perfect	V-ing perfect
I cannot have conked you cannot have conked he cannot have conked we cannot have conked you cannot have conked they cannot have conked	I cannot have been conking you cannot have been conking he cannot have been conking we cannot have been conking you cannot have been conking they cannot have been conking

Interrogative form

Simple form	V-ing form
can I conk? can you conk? can he conk? can we conk? can you conk? can they conk?	can I be conking? can you be conking? can he be conking? can we be conking? can you be conking? can they be conking?
Perfect	V-ing perfect
can I have conked? can you have conked? can he have conked? can we have conked? can you have conked? can they have conked?	can I have been conking? can you have been conking? can he have been conking? can we have been conking? can you have been conking? can they have been conking?

Interro-negative form

Simple form	V-ing form
can I not conk? can you not conk? can he not conk? can we not conk? can you not conk? can they not conk?	can I not be conking? can you not be conking? can he not be conking? can we not be conking? can you not be conking? can they not be conking?
Perfect	V-ing perfect
can I not have conked? can you not have conked? can he not have conked? can we not have conked? can you not have conked? can they not have conked?	can I not have been conking? can you not have been conking? can he not have been conking? can we not have been conking? can you not have been conking? can they not have been conking?