I could speechify you could speechify he could speechify we could speechify you could speechify they could speechify
V-ing form
I could be speechifying you could be speechifying he could be speechifying we could be speechifying you could be speechifying they could be speechifying
Perfect
I could have speechified you could have speechified he could have speechified we could have speechified you could have speechified they could have speechified
V-ing perfect
I could have been speechifying you could have been speechifying he could have been speechifying we could have been speechifying you could have been speechifying they could have been speechifying
Negation
Simple form
I could not speechify you could not speechify he could not speechify we could not speechify you could not speechify they could not speechify
V-ing form
I could not be speechifying you could not be speechifying he could not be speechifying we could not be speechifying you could not be speechifying they could not be speechifying
Perfect
I could not have speechified you could not have speechified he could not have speechified we could not have speechified you could not have speechified they could not have speechified
V-ing perfect
I could not have been speechifying you could not have been speechifying he could not have been speechifying we could not have been speechifying you could not have been speechifying they could not have been speechifying
Interrogative form
Simple form
could I speechify? could you speechify? could he speechify? could we speechify? could you speechify? could they speechify?
V-ing form
could I be speechifying? could you be speechifying? could he be speechifying? could we be speechifying? could you be speechifying? could they be speechifying?
Perfect
could I have speechified? could you have speechified? could he have speechified? could we have speechified? could you have speechified? could they have speechified?
V-ing perfect
could I have been speechifying? could you have been speechifying? could he have been speechifying? could we have been speechifying? could you have been speechifying? could they have been speechifying?
Interro-negative form
Simple form
could I not speechify? could you not speechify? could he not speechify? could we not speechify? could you not speechify? could they not speechify?
V-ing form
could I not be speechifying? could you not be speechifying? could he not be speechifying? could we not be speechifying? could you not be speechifying? could they not be speechifying?
Perfect
could I not have speechified? could you not have speechified? could he not have speechified? could we not have speechified? could you not have speechified? could they not have speechified?
V-ing perfect
could I not have been speechifying? could you not have been speechifying? could he not have been speechifying? could we not have been speechifying? could you not have been speechifying? could they not have been speechifying?