I can unstick you can unstick he can unstick we can unstick you can unstick they can unstick
V-ing form
I can be unsticking you can be unsticking he can be unsticking we can be unsticking you can be unsticking they can be unsticking
Perfect
I can have unsticked you can have unsticked he can have unsticked we can have unsticked you can have unsticked they can have unsticked
V-ing perfect
I can have been unsticking you can have been unsticking he can have been unsticking we can have been unsticking you can have been unsticking they can have been unsticking
Negation
Simple form
I can't unstick you can't unstick he can't unstick we can't unstick you can't unstick they can't unstick
V-ing form
I can't be unsticking you can't be unsticking he can't be unsticking we can't be unsticking you can't be unsticking they can't be unsticking
Perfect
I can't have unsticked you can't have unsticked he can't have unsticked we can't have unsticked you can't have unsticked they can't have unsticked
V-ing perfect
I can't have been unsticking you can't have been unsticking he can't have been unsticking we can't have been unsticking you can't have been unsticking they can't have been unsticking
Interrogative form
Simple form
can I unstick? can you unstick? can he unstick? can we unstick? can you unstick? can they unstick?
V-ing form
can I be unsticking? can you be unsticking? can he be unsticking? can we be unsticking? can you be unsticking? can they be unsticking?
Perfect
can I have unsticked? can you have unsticked? can he have unsticked? can we have unsticked? can you have unsticked? can they have unsticked?
V-ing perfect
can I have been unsticking? can you have been unsticking? can he have been unsticking? can we have been unsticking? can you have been unsticking? can they have been unsticking?
Interro-negative form
Simple form
can't I unstick? can't you unstick? can't he unstick? can't we unstick? can't you unstick? can't they unstick?
V-ing form
can't I be unsticking? can't you be unsticking? can't he be unsticking? can't we be unsticking? can't you be unsticking? can't they be unsticking?
Perfect
can't I have unsticked? can't you have unsticked? can't he have unsticked? can't we have unsticked? can't you have unsticked? can't they have unsticked?
V-ing perfect
can't I have been unsticking? can't you have been unsticking? can't he have been unsticking? can't we have been unsticking? can't you have been unsticking? can't they have been unsticking?