I could instigate you could instigate he could instigate we could instigate you could instigate they could instigate
V-ing form
I could be instigating you could be instigating he could be instigating we could be instigating you could be instigating they could be instigating
Perfect
I could have instigated you could have instigated he could have instigated we could have instigated you could have instigated they could have instigated
V-ing perfect
I could have been instigating you could have been instigating he could have been instigating we could have been instigating you could have been instigating they could have been instigating
Negation
Simple form
I could not instigate you could not instigate he could not instigate we could not instigate you could not instigate they could not instigate
V-ing form
I could not be instigating you could not be instigating he could not be instigating we could not be instigating you could not be instigating they could not be instigating
Perfect
I could not have instigated you could not have instigated he could not have instigated we could not have instigated you could not have instigated they could not have instigated
V-ing perfect
I could not have been instigating you could not have been instigating he could not have been instigating we could not have been instigating you could not have been instigating they could not have been instigating
Interrogative form
Simple form
could I instigate? could you instigate? could he instigate? could we instigate? could you instigate? could they instigate?
V-ing form
could I be instigating? could you be instigating? could he be instigating? could we be instigating? could you be instigating? could they be instigating?
Perfect
could I have instigated? could you have instigated? could he have instigated? could we have instigated? could you have instigated? could they have instigated?
V-ing perfect
could I have been instigating? could you have been instigating? could he have been instigating? could we have been instigating? could you have been instigating? could they have been instigating?
Interro-negative form
Simple form
could I not instigate? could you not instigate? could he not instigate? could we not instigate? could you not instigate? could they not instigate?
V-ing form
could I not be instigating? could you not be instigating? could he not be instigating? could we not be instigating? could you not be instigating? could they not be instigating?
Perfect
could I not have instigated? could you not have instigated? could he not have instigated? could we not have instigated? could you not have instigated? could they not have instigated?
V-ing perfect
could I not have been instigating? could you not have been instigating? could he not have been instigating? could we not have been instigating? could you not have been instigating? could they not have been instigating?