I can swerve you can swerve he can swerve we can swerve you can swerve they can swerve
V-ing form
I can be swerving you can be swerving he can be swerving we can be swerving you can be swerving they can be swerving
Perfect
I can have swerved you can have swerved he can have swerved we can have swerved you can have swerved they can have swerved
V-ing perfect
I can have been swerving you can have been swerving he can have been swerving we can have been swerving you can have been swerving they can have been swerving
Negation
Simple form
I can't swerve you can't swerve he can't swerve we can't swerve you can't swerve they can't swerve
V-ing form
I can't be swerving you can't be swerving he can't be swerving we can't be swerving you can't be swerving they can't be swerving
Perfect
I can't have swerved you can't have swerved he can't have swerved we can't have swerved you can't have swerved they can't have swerved
V-ing perfect
I can't have been swerving you can't have been swerving he can't have been swerving we can't have been swerving you can't have been swerving they can't have been swerving
Interrogative form
Simple form
can I swerve? can you swerve? can he swerve? can we swerve? can you swerve? can they swerve?
V-ing form
can I be swerving? can you be swerving? can he be swerving? can we be swerving? can you be swerving? can they be swerving?
Perfect
can I have swerved? can you have swerved? can he have swerved? can we have swerved? can you have swerved? can they have swerved?
V-ing perfect
can I have been swerving? can you have been swerving? can he have been swerving? can we have been swerving? can you have been swerving? can they have been swerving?
Interro-negative form
Simple form
can't I swerve? can't you swerve? can't he swerve? can't we swerve? can't you swerve? can't they swerve?
V-ing form
can't I be swerving? can't you be swerving? can't he be swerving? can't we be swerving? can't you be swerving? can't they be swerving?
Perfect
can't I have swerved? can't you have swerved? can't he have swerved? can't we have swerved? can't you have swerved? can't they have swerved?
V-ing perfect
can't I have been swerving? can't you have been swerving? can't he have been swerving? can't we have been swerving? can't you have been swerving? can't they have been swerving?