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