English verb conjugation
CAN PRICK

Regular verb: prick - pricked - pricked

Affirmation

Simple form	V-ing form
I can prick you can prick she can prick we can prick you can prick they can prick	I can be pricking you can be pricking she can be pricking we can be pricking you can be pricking they can be pricking
Perfect	V-ing perfect
I can have pricked you can have pricked she can have pricked we can have pricked you can have pricked they can have pricked	I can have been pricking you can have been pricking she can have been pricking we can have been pricking you can have been pricking they can have been pricking

Negation

Simple form	V-ing form
I can't prick you can't prick she can't prick we can't prick you can't prick they can't prick	I can't be pricking you can't be pricking she can't be pricking we can't be pricking you can't be pricking they can't be pricking
Perfect	V-ing perfect
I can't have pricked you can't have pricked she can't have pricked we can't have pricked you can't have pricked they can't have pricked	I can't have been pricking you can't have been pricking she can't have been pricking we can't have been pricking you can't have been pricking they can't have been pricking

Interrogative form

Simple form	V-ing form
can I prick? can you prick? can she prick? can we prick? can you prick? can they prick?	can I be pricking? can you be pricking? can she be pricking? can we be pricking? can you be pricking? can they be pricking?
Perfect	V-ing perfect
can I have pricked? can you have pricked? can she have pricked? can we have pricked? can you have pricked? can they have pricked?	can I have been pricking? can you have been pricking? can she have been pricking? can we have been pricking? can you have been pricking? can they have been pricking?

Interro-negative form

Simple form	V-ing form
can't I prick? can't you prick? can't she prick? can't we prick? can't you prick? can't they prick?	can't I be pricking? can't you be pricking? can't she be pricking? can't we be pricking? can't you be pricking? can't they be pricking?
Perfect	V-ing perfect
can't I have pricked? can't you have pricked? can't she have pricked? can't we have pricked? can't you have pricked? can't they have pricked?	can't I have been pricking? can't you have been pricking? can't she have been pricking? can't we have been pricking? can't you have been pricking? can't they have been pricking?