I can candy you can candy he can candy we can candy you can candy they can candy
V-ing form
I can be candying you can be candying he can be candying we can be candying you can be candying they can be candying
Perfect
I can have candied you can have candied he can have candied we can have candied you can have candied they can have candied
V-ing perfect
I can have been candying you can have been candying he can have been candying we can have been candying you can have been candying they can have been candying
Negation
Simple form
I cannot candy you cannot candy he cannot candy we cannot candy you cannot candy they cannot candy
V-ing form
I cannot be candying you cannot be candying he cannot be candying we cannot be candying you cannot be candying they cannot be candying
Perfect
I cannot have candied you cannot have candied he cannot have candied we cannot have candied you cannot have candied they cannot have candied
V-ing perfect
I cannot have been candying you cannot have been candying he cannot have been candying we cannot have been candying you cannot have been candying they cannot have been candying
Interrogative form
Simple form
can I candy? can you candy? can he candy? can we candy? can you candy? can they candy?
V-ing form
can I be candying? can you be candying? can he be candying? can we be candying? can you be candying? can they be candying?
Perfect
can I have candied? can you have candied? can he have candied? can we have candied? can you have candied? can they have candied?
V-ing perfect
can I have been candying? can you have been candying? can he have been candying? can we have been candying? can you have been candying? can they have been candying?
Interro-negative form
Simple form
can I not candy? can you not candy? can he not candy? can we not candy? can you not candy? can they not candy?
V-ing form
can I not be candying? can you not be candying? can he not be candying? can we not be candying? can you not be candying? can they not be candying?
Perfect
can I not have candied? can you not have candied? can he not have candied? can we not have candied? can you not have candied? can they not have candied?
V-ing perfect
can I not have been candying? can you not have been candying? can he not have been candying? can we not have been candying? can you not have been candying? can they not have been candying?