I could decerebrate you could decerebrate he could decerebrate we could decerebrate you could decerebrate they could decerebrate
V-ing form
I could be decerebrating you could be decerebrating he could be decerebrating we could be decerebrating you could be decerebrating they could be decerebrating
Perfect
I could have decerebrated you could have decerebrated he could have decerebrated we could have decerebrated you could have decerebrated they could have decerebrated
V-ing perfect
I could have been decerebrating you could have been decerebrating he could have been decerebrating we could have been decerebrating you could have been decerebrating they could have been decerebrating
Negation
Simple form
I could not decerebrate you could not decerebrate he could not decerebrate we could not decerebrate you could not decerebrate they could not decerebrate
V-ing form
I could not be decerebrating you could not be decerebrating he could not be decerebrating we could not be decerebrating you could not be decerebrating they could not be decerebrating
Perfect
I could not have decerebrated you could not have decerebrated he could not have decerebrated we could not have decerebrated you could not have decerebrated they could not have decerebrated
V-ing perfect
I could not have been decerebrating you could not have been decerebrating he could not have been decerebrating we could not have been decerebrating you could not have been decerebrating they could not have been decerebrating
Interrogative form
Simple form
could I decerebrate? could you decerebrate? could he decerebrate? could we decerebrate? could you decerebrate? could they decerebrate?
V-ing form
could I be decerebrating? could you be decerebrating? could he be decerebrating? could we be decerebrating? could you be decerebrating? could they be decerebrating?
Perfect
could I have decerebrated? could you have decerebrated? could he have decerebrated? could we have decerebrated? could you have decerebrated? could they have decerebrated?
V-ing perfect
could I have been decerebrating? could you have been decerebrating? could he have been decerebrating? could we have been decerebrating? could you have been decerebrating? could they have been decerebrating?
Interro-negative form
Simple form
could I not decerebrate? could you not decerebrate? could he not decerebrate? could we not decerebrate? could you not decerebrate? could they not decerebrate?
V-ing form
could I not be decerebrating? could you not be decerebrating? could he not be decerebrating? could we not be decerebrating? could you not be decerebrating? could they not be decerebrating?
Perfect
could I not have decerebrated? could you not have decerebrated? could he not have decerebrated? could we not have decerebrated? could you not have decerebrated? could they not have decerebrated?
V-ing perfect
could I not have been decerebrating? could you not have been decerebrating? could he not have been decerebrating? could we not have been decerebrating? could you not have been decerebrating? could they not have been decerebrating?