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 cannot shut you cannot shut he cannot shut we cannot shut you cannot shut they cannot shut
V-ing form
I cannot be shutting you cannot be shutting he cannot be shutting we cannot be shutting you cannot be shutting they cannot be shutting
Perfect
I cannot have shut you cannot have shut he cannot have shut we cannot have shut you cannot have shut they cannot have shut
V-ing perfect
I cannot have been shutting you cannot have been shutting he cannot have been shutting we cannot have been shutting you cannot have been shutting they cannot 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 I not shut? can you not shut? can he not shut? can we not shut? can you not shut? can they not shut?
V-ing form
can I not be shutting? can you not be shutting? can he not be shutting? can we not be shutting? can you not be shutting? can they not be shutting?
Perfect
can I not have shut? can you not have shut? can he not have shut? can we not have shut? can you not have shut? can they not have shut?
V-ing perfect
can I not have been shutting? can you not have been shutting? can he not have been shutting? can we not have been shutting? can you not have been shutting? can they not have been shutting?