I can blacktop you can blacktop he can blacktop we can blacktop you can blacktop they can blacktop
V-ing form
I can be blacktoping you can be blacktoping he can be blacktoping we can be blacktoping you can be blacktoping they can be blacktoping
Perfect
I can have blacktoped you can have blacktoped he can have blacktoped we can have blacktoped you can have blacktoped they can have blacktoped
V-ing perfect
I can have been blacktoping you can have been blacktoping he can have been blacktoping we can have been blacktoping you can have been blacktoping they can have been blacktoping
Negation
Simple form
I cannot blacktop you cannot blacktop he cannot blacktop we cannot blacktop you cannot blacktop they cannot blacktop
V-ing form
I cannot be blacktoping you cannot be blacktoping he cannot be blacktoping we cannot be blacktoping you cannot be blacktoping they cannot be blacktoping
Perfect
I cannot have blacktoped you cannot have blacktoped he cannot have blacktoped we cannot have blacktoped you cannot have blacktoped they cannot have blacktoped
V-ing perfect
I cannot have been blacktoping you cannot have been blacktoping he cannot have been blacktoping we cannot have been blacktoping you cannot have been blacktoping they cannot have been blacktoping
Interrogative form
Simple form
can I blacktop? can you blacktop? can he blacktop? can we blacktop? can you blacktop? can they blacktop?
V-ing form
can I be blacktoping? can you be blacktoping? can he be blacktoping? can we be blacktoping? can you be blacktoping? can they be blacktoping?
Perfect
can I have blacktoped? can you have blacktoped? can he have blacktoped? can we have blacktoped? can you have blacktoped? can they have blacktoped?
V-ing perfect
can I have been blacktoping? can you have been blacktoping? can he have been blacktoping? can we have been blacktoping? can you have been blacktoping? can they have been blacktoping?
Interro-negative form
Simple form
can I not blacktop? can you not blacktop? can he not blacktop? can we not blacktop? can you not blacktop? can they not blacktop?
V-ing form
can I not be blacktoping? can you not be blacktoping? can he not be blacktoping? can we not be blacktoping? can you not be blacktoping? can they not be blacktoping?
Perfect
can I not have blacktoped? can you not have blacktoped? can he not have blacktoped? can we not have blacktoped? can you not have blacktoped? can they not have blacktoped?
V-ing perfect
can I not have been blacktoping? can you not have been blacktoping? can he not have been blacktoping? can we not have been blacktoping? can you not have been blacktoping? can they not have been blacktoping?