I can decrypt you can decrypt she can decrypt we can decrypt you can decrypt they can decrypt
V-ing form
I can be decrypting you can be decrypting she can be decrypting we can be decrypting you can be decrypting they can be decrypting
Perfect
I can have decrypted you can have decrypted she can have decrypted we can have decrypted you can have decrypted they can have decrypted
V-ing perfect
I can have been decrypting you can have been decrypting she can have been decrypting we can have been decrypting you can have been decrypting they can have been decrypting
Negation
Simple form
I cannot decrypt you cannot decrypt she cannot decrypt we cannot decrypt you cannot decrypt they cannot decrypt
V-ing form
I cannot be decrypting you cannot be decrypting she cannot be decrypting we cannot be decrypting you cannot be decrypting they cannot be decrypting
Perfect
I cannot have decrypted you cannot have decrypted she cannot have decrypted we cannot have decrypted you cannot have decrypted they cannot have decrypted
V-ing perfect
I cannot have been decrypting you cannot have been decrypting she cannot have been decrypting we cannot have been decrypting you cannot have been decrypting they cannot have been decrypting
Interrogative form
Simple form
can I decrypt? can you decrypt? can she decrypt? can we decrypt? can you decrypt? can they decrypt?
V-ing form
can I be decrypting? can you be decrypting? can she be decrypting? can we be decrypting? can you be decrypting? can they be decrypting?
Perfect
can I have decrypted? can you have decrypted? can she have decrypted? can we have decrypted? can you have decrypted? can they have decrypted?
V-ing perfect
can I have been decrypting? can you have been decrypting? can she have been decrypting? can we have been decrypting? can you have been decrypting? can they have been decrypting?
Interro-negative form
Simple form
can I not decrypt? can you not decrypt? can she not decrypt? can we not decrypt? can you not decrypt? can they not decrypt?
V-ing form
can I not be decrypting? can you not be decrypting? can she not be decrypting? can we not be decrypting? can you not be decrypting? can they not be decrypting?
Perfect
can I not have decrypted? can you not have decrypted? can she not have decrypted? can we not have decrypted? can you not have decrypted? can they not have decrypted?
V-ing perfect
can I not have been decrypting? can you not have been decrypting? can she not have been decrypting? can we not have been decrypting? can you not have been decrypting? can they not have been decrypting?