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