I could electrify you could electrify he could electrify we could electrify you could electrify they could electrify
V-ing form
I could be electrifying you could be electrifying he could be electrifying we could be electrifying you could be electrifying they could be electrifying
Perfect
I could have electrified you could have electrified he could have electrified we could have electrified you could have electrified they could have electrified
V-ing perfect
I could have been electrifying you could have been electrifying he could have been electrifying we could have been electrifying you could have been electrifying they could have been electrifying
Negation
Simple form
I could not electrify you could not electrify he could not electrify we could not electrify you could not electrify they could not electrify
V-ing form
I could not be electrifying you could not be electrifying he could not be electrifying we could not be electrifying you could not be electrifying they could not be electrifying
Perfect
I could not have electrified you could not have electrified he could not have electrified we could not have electrified you could not have electrified they could not have electrified
V-ing perfect
I could not have been electrifying you could not have been electrifying he could not have been electrifying we could not have been electrifying you could not have been electrifying they could not have been electrifying
Interrogative form
Simple form
could I electrify? could you electrify? could he electrify? could we electrify? could you electrify? could they electrify?
V-ing form
could I be electrifying? could you be electrifying? could he be electrifying? could we be electrifying? could you be electrifying? could they be electrifying?
Perfect
could I have electrified? could you have electrified? could he have electrified? could we have electrified? could you have electrified? could they have electrified?
V-ing perfect
could I have been electrifying? could you have been electrifying? could he have been electrifying? could we have been electrifying? could you have been electrifying? could they have been electrifying?
Interro-negative form
Simple form
could I not electrify? could you not electrify? could he not electrify? could we not electrify? could you not electrify? could they not electrify?
V-ing form
could I not be electrifying? could you not be electrifying? could he not be electrifying? could we not be electrifying? could you not be electrifying? could they not be electrifying?
Perfect
could I not have electrified? could you not have electrified? could he not have electrified? could we not have electrified? could you not have electrified? could they not have electrified?
V-ing perfect
could I not have been electrifying? could you not have been electrifying? could he not have been electrifying? could we not have been electrifying? could you not have been electrifying? could they not have been electrifying?