I could channelize you could channelize he could channelize we could channelize you could channelize they could channelize
V-ing form
I could be channelizing you could be channelizing he could be channelizing we could be channelizing you could be channelizing they could be channelizing
Perfect
I could have channelized you could have channelized he could have channelized we could have channelized you could have channelized they could have channelized
V-ing perfect
I could have been channelizing you could have been channelizing he could have been channelizing we could have been channelizing you could have been channelizing they could have been channelizing
Negation
Simple form
I could not channelize you could not channelize he could not channelize we could not channelize you could not channelize they could not channelize
V-ing form
I could not be channelizing you could not be channelizing he could not be channelizing we could not be channelizing you could not be channelizing they could not be channelizing
Perfect
I could not have channelized you could not have channelized he could not have channelized we could not have channelized you could not have channelized they could not have channelized
V-ing perfect
I could not have been channelizing you could not have been channelizing he could not have been channelizing we could not have been channelizing you could not have been channelizing they could not have been channelizing
Interrogative form
Simple form
could I channelize? could you channelize? could he channelize? could we channelize? could you channelize? could they channelize?
V-ing form
could I be channelizing? could you be channelizing? could he be channelizing? could we be channelizing? could you be channelizing? could they be channelizing?
Perfect
could I have channelized? could you have channelized? could he have channelized? could we have channelized? could you have channelized? could they have channelized?
V-ing perfect
could I have been channelizing? could you have been channelizing? could he have been channelizing? could we have been channelizing? could you have been channelizing? could they have been channelizing?
Interro-negative form
Simple form
could I not channelize? could you not channelize? could he not channelize? could we not channelize? could you not channelize? could they not channelize?
V-ing form
could I not be channelizing? could you not be channelizing? could he not be channelizing? could we not be channelizing? could you not be channelizing? could they not be channelizing?
Perfect
could I not have channelized? could you not have channelized? could he not have channelized? could we not have channelized? could you not have channelized? could they not have channelized?
V-ing perfect
could I not have been channelizing? could you not have been channelizing? could he not have been channelizing? could we not have been channelizing? could you not have been channelizing? could they not have been channelizing?