I could notify you could notify he could notify we could notify you could notify they could notify
V-ing form
I could be notifying you could be notifying he could be notifying we could be notifying you could be notifying they could be notifying
Perfect
I could have notified you could have notified he could have notified we could have notified you could have notified they could have notified
V-ing perfect
I could have been notifying you could have been notifying he could have been notifying we could have been notifying you could have been notifying they could have been notifying
Negation
Simple form
I could not notify you could not notify he could not notify we could not notify you could not notify they could not notify
V-ing form
I could not be notifying you could not be notifying he could not be notifying we could not be notifying you could not be notifying they could not be notifying
Perfect
I could not have notified you could not have notified he could not have notified we could not have notified you could not have notified they could not have notified
V-ing perfect
I could not have been notifying you could not have been notifying he could not have been notifying we could not have been notifying you could not have been notifying they could not have been notifying
Interrogative form
Simple form
could I notify? could you notify? could he notify? could we notify? could you notify? could they notify?
V-ing form
could I be notifying? could you be notifying? could he be notifying? could we be notifying? could you be notifying? could they be notifying?
Perfect
could I have notified? could you have notified? could he have notified? could we have notified? could you have notified? could they have notified?
V-ing perfect
could I have been notifying? could you have been notifying? could he have been notifying? could we have been notifying? could you have been notifying? could they have been notifying?
Interro-negative form
Simple form
could I not notify? could you not notify? could he not notify? could we not notify? could you not notify? could they not notify?
V-ing form
could I not be notifying? could you not be notifying? could he not be notifying? could we not be notifying? could you not be notifying? could they not be notifying?
Perfect
could I not have notified? could you not have notified? could he not have notified? could we not have notified? could you not have notified? could they not have notified?
V-ing perfect
could I not have been notifying? could you not have been notifying? could he not have been notifying? could we not have been notifying? could you not have been notifying? could they not have been notifying?