I could declassify you could declassify he could declassify we could declassify you could declassify they could declassify
V-ing form
I could be declassifying you could be declassifying he could be declassifying we could be declassifying you could be declassifying they could be declassifying
Perfect
I could have declassified you could have declassified he could have declassified we could have declassified you could have declassified they could have declassified
V-ing perfect
I could have been declassifying you could have been declassifying he could have been declassifying we could have been declassifying you could have been declassifying they could have been declassifying
Negation
Simple form
I could not declassify you could not declassify he could not declassify we could not declassify you could not declassify they could not declassify
V-ing form
I could not be declassifying you could not be declassifying he could not be declassifying we could not be declassifying you could not be declassifying they could not be declassifying
Perfect
I could not have declassified you could not have declassified he could not have declassified we could not have declassified you could not have declassified they could not have declassified
V-ing perfect
I could not have been declassifying you could not have been declassifying he could not have been declassifying we could not have been declassifying you could not have been declassifying they could not have been declassifying
Interrogative form
Simple form
could I declassify? could you declassify? could he declassify? could we declassify? could you declassify? could they declassify?
V-ing form
could I be declassifying? could you be declassifying? could he be declassifying? could we be declassifying? could you be declassifying? could they be declassifying?
Perfect
could I have declassified? could you have declassified? could he have declassified? could we have declassified? could you have declassified? could they have declassified?
V-ing perfect
could I have been declassifying? could you have been declassifying? could he have been declassifying? could we have been declassifying? could you have been declassifying? could they have been declassifying?
Interro-negative form
Simple form
could I not declassify? could you not declassify? could he not declassify? could we not declassify? could you not declassify? could they not declassify?
V-ing form
could I not be declassifying? could you not be declassifying? could he not be declassifying? could we not be declassifying? could you not be declassifying? could they not be declassifying?
Perfect
could I not have declassified? could you not have declassified? could he not have declassified? could we not have declassified? could you not have declassified? could they not have declassified?
V-ing perfect
could I not have been declassifying? could you not have been declassifying? could he not have been declassifying? could we not have been declassifying? could you not have been declassifying? could they not have been declassifying?