I could prompt you could prompt she could prompt we could prompt you could prompt they could prompt
V-ing form
I could be prompting you could be prompting she could be prompting we could be prompting you could be prompting they could be prompting
Perfect
I could have prompted you could have prompted she could have prompted we could have prompted you could have prompted they could have prompted
V-ing perfect
I could have been prompting you could have been prompting she could have been prompting we could have been prompting you could have been prompting they could have been prompting
Negation
Simple form
I could not prompt you could not prompt she could not prompt we could not prompt you could not prompt they could not prompt
V-ing form
I could not be prompting you could not be prompting she could not be prompting we could not be prompting you could not be prompting they could not be prompting
Perfect
I could not have prompted you could not have prompted she could not have prompted we could not have prompted you could not have prompted they could not have prompted
V-ing perfect
I could not have been prompting you could not have been prompting she could not have been prompting we could not have been prompting you could not have been prompting they could not have been prompting
Interrogative form
Simple form
could I prompt? could you prompt? could she prompt? could we prompt? could you prompt? could they prompt?
V-ing form
could I be prompting? could you be prompting? could she be prompting? could we be prompting? could you be prompting? could they be prompting?
Perfect
could I have prompted? could you have prompted? could she have prompted? could we have prompted? could you have prompted? could they have prompted?
V-ing perfect
could I have been prompting? could you have been prompting? could she have been prompting? could we have been prompting? could you have been prompting? could they have been prompting?
Interro-negative form
Simple form
could I not prompt? could you not prompt? could she not prompt? could we not prompt? could you not prompt? could they not prompt?
V-ing form
could I not be prompting? could you not be prompting? could she not be prompting? could we not be prompting? could you not be prompting? could they not be prompting?
Perfect
could I not have prompted? could you not have prompted? could she not have prompted? could we not have prompted? could you not have prompted? could they not have prompted?
V-ing perfect
could I not have been prompting? could you not have been prompting? could she not have been prompting? could we not have been prompting? could you not have been prompting? could they not have been prompting?