English verb conjugation
CAN STROKE

Regular verb: stroke - stroked - stroked

Affirmation

Simple form	V-ing form
I can stroke you can stroke he can stroke we can stroke you can stroke they can stroke	I can be stroking you can be stroking he can be stroking we can be stroking you can be stroking they can be stroking
Perfect	V-ing perfect
I can have stroked you can have stroked he can have stroked we can have stroked you can have stroked they can have stroked	I can have been stroking you can have been stroking he can have been stroking we can have been stroking you can have been stroking they can have been stroking

Negation

Simple form	V-ing form
I can't stroke you can't stroke he can't stroke we can't stroke you can't stroke they can't stroke	I can't be stroking you can't be stroking he can't be stroking we can't be stroking you can't be stroking they can't be stroking
Perfect	V-ing perfect
I can't have stroked you can't have stroked he can't have stroked we can't have stroked you can't have stroked they can't have stroked	I can't have been stroking you can't have been stroking he can't have been stroking we can't have been stroking you can't have been stroking they can't have been stroking

Interrogative form

Simple form	V-ing form
can I stroke? can you stroke? can he stroke? can we stroke? can you stroke? can they stroke?	can I be stroking? can you be stroking? can he be stroking? can we be stroking? can you be stroking? can they be stroking?
Perfect	V-ing perfect
can I have stroked? can you have stroked? can he have stroked? can we have stroked? can you have stroked? can they have stroked?	can I have been stroking? can you have been stroking? can he have been stroking? can we have been stroking? can you have been stroking? can they have been stroking?

Interro-negative form

Simple form	V-ing form
can't I stroke? can't you stroke? can't he stroke? can't we stroke? can't you stroke? can't they stroke?	can't I be stroking? can't you be stroking? can't he be stroking? can't we be stroking? can't you be stroking? can't they be stroking?
Perfect	V-ing perfect
can't I have stroked? can't you have stroked? can't he have stroked? can't we have stroked? can't you have stroked? can't they have stroked?	can't I have been stroking? can't you have been stroking? can't he have been stroking? can't we have been stroking? can't you have been stroking? can't they have been stroking?