I can ramp you can ramp he can ramp we can ramp you can ramp they can ramp
V-ing form
I can be ramping you can be ramping he can be ramping we can be ramping you can be ramping they can be ramping
Perfect
I can have ramped you can have ramped he can have ramped we can have ramped you can have ramped they can have ramped
V-ing perfect
I can have been ramping you can have been ramping he can have been ramping we can have been ramping you can have been ramping they can have been ramping
Negation
Simple form
I can't ramp you can't ramp he can't ramp we can't ramp you can't ramp they can't ramp
V-ing form
I can't be ramping you can't be ramping he can't be ramping we can't be ramping you can't be ramping they can't be ramping
Perfect
I can't have ramped you can't have ramped he can't have ramped we can't have ramped you can't have ramped they can't have ramped
V-ing perfect
I can't have been ramping you can't have been ramping he can't have been ramping we can't have been ramping you can't have been ramping they can't have been ramping
Interrogative form
Simple form
can I ramp? can you ramp? can he ramp? can we ramp? can you ramp? can they ramp?
V-ing form
can I be ramping? can you be ramping? can he be ramping? can we be ramping? can you be ramping? can they be ramping?
Perfect
can I have ramped? can you have ramped? can he have ramped? can we have ramped? can you have ramped? can they have ramped?
V-ing perfect
can I have been ramping? can you have been ramping? can he have been ramping? can we have been ramping? can you have been ramping? can they have been ramping?
Interro-negative form
Simple form
can't I ramp? can't you ramp? can't he ramp? can't we ramp? can't you ramp? can't they ramp?
V-ing form
can't I be ramping? can't you be ramping? can't he be ramping? can't we be ramping? can't you be ramping? can't they be ramping?
Perfect
can't I have ramped? can't you have ramped? can't he have ramped? can't we have ramped? can't you have ramped? can't they have ramped?
V-ing perfect
can't I have been ramping? can't you have been ramping? can't he have been ramping? can't we have been ramping? can't you have been ramping? can't they have been ramping?