English verb conjugation
COULD CHANNELIZE

Regular verb: channelize - channelized - channelized

Affirmation

Simple form	V-ing form
I could channelize you could channelize he could channelize we could channelize you could channelize they could channelize	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	V-ing 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	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	V-ing form
I couldn't channelize you couldn't channelize he couldn't channelize we couldn't channelize you couldn't channelize they couldn't channelize	I couldn't be channelizing you couldn't be channelizing he couldn't be channelizing we couldn't be channelizing you couldn't be channelizing they couldn't be channelizing
Perfect	V-ing perfect
I couldn't have channelized you couldn't have channelized he couldn't have channelized we couldn't have channelized you couldn't have channelized they couldn't have channelized	I couldn't have been channelizing you couldn't have been channelizing he couldn't have been channelizing we couldn't have been channelizing you couldn't have been channelizing they couldn't have been channelizing

Interrogative form

Simple form	V-ing form
could I channelize? could you channelize? could he channelize? could we channelize? could you channelize? could they channelize?	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	V-ing 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?	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	V-ing form
couldn't I channelize? couldn't you channelize? couldn't he channelize? couldn't we channelize? couldn't you channelize? couldn't they channelize?	couldn't I be channelizing? couldn't you be channelizing? couldn't he be channelizing? couldn't we be channelizing? couldn't you be channelizing? couldn't they be channelizing?
Perfect	V-ing perfect
couldn't I have channelized? couldn't you have channelized? couldn't he have channelized? couldn't we have channelized? couldn't you have channelized? couldn't they have channelized?	couldn't I have been channelizing? couldn't you have been channelizing? couldn't he have been channelizing? couldn't we have been channelizing? couldn't you have been channelizing? couldn't they have been channelizing?