Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I can dam up you can dam up he can dam up we can dam up you can dam up they can dam up
V-ing form
I can be dam uping you can be dam uping he can be dam uping we can be dam uping you can be dam uping they can be dam uping
Perfect
I can have dam uped you can have dam uped he can have dam uped we can have dam uped you can have dam uped they can have dam uped
V-ing perfect
I can have been dam uping you can have been dam uping he can have been dam uping we can have been dam uping you can have been dam uping they can have been dam uping
Negation
Simple form
I can't dam up you can't dam up he can't dam up we can't dam up you can't dam up they can't dam up
V-ing form
I can't be dam uping you can't be dam uping he can't be dam uping we can't be dam uping you can't be dam uping they can't be dam uping
Perfect
I can't have dam uped you can't have dam uped he can't have dam uped we can't have dam uped you can't have dam uped they can't have dam uped
V-ing perfect
I can't have been dam uping you can't have been dam uping he can't have been dam uping we can't have been dam uping you can't have been dam uping they can't have been dam uping
Interrogative form
Simple form
can I dam up? can you dam up? can he dam up? can we dam up? can you dam up? can they dam up?
V-ing form
can I be dam uping? can you be dam uping? can he be dam uping? can we be dam uping? can you be dam uping? can they be dam uping?
Perfect
can I have dam uped? can you have dam uped? can he have dam uped? can we have dam uped? can you have dam uped? can they have dam uped?
V-ing perfect
can I have been dam uping? can you have been dam uping? can he have been dam uping? can we have been dam uping? can you have been dam uping? can they have been dam uping?
Interro-negative form
Simple form
can't I dam up? can't you dam up? can't he dam up? can't we dam up? can't you dam up? can't they dam up?
V-ing form
can't I be dam uping? can't you be dam uping? can't he be dam uping? can't we be dam uping? can't you be dam uping? can't they be dam uping?
Perfect
can't I have dam uped? can't you have dam uped? can't he have dam uped? can't we have dam uped? can't you have dam uped? can't they have dam uped?
V-ing perfect
can't I have been dam uping? can't you have been dam uping? can't he have been dam uping? can't we have been dam uping? can't you have been dam uping? can't they have been dam uping?