I could dilapidate you could dilapidate he could dilapidate we could dilapidate you could dilapidate they could dilapidate
V-ing form
I could be dilapidating you could be dilapidating he could be dilapidating we could be dilapidating you could be dilapidating they could be dilapidating
Perfect
I could have dilapidated you could have dilapidated he could have dilapidated we could have dilapidated you could have dilapidated they could have dilapidated
V-ing perfect
I could have been dilapidating you could have been dilapidating he could have been dilapidating we could have been dilapidating you could have been dilapidating they could have been dilapidating
Negation
Simple form
I could not dilapidate you could not dilapidate he could not dilapidate we could not dilapidate you could not dilapidate they could not dilapidate
V-ing form
I could not be dilapidating you could not be dilapidating he could not be dilapidating we could not be dilapidating you could not be dilapidating they could not be dilapidating
Perfect
I could not have dilapidated you could not have dilapidated he could not have dilapidated we could not have dilapidated you could not have dilapidated they could not have dilapidated
V-ing perfect
I could not have been dilapidating you could not have been dilapidating he could not have been dilapidating we could not have been dilapidating you could not have been dilapidating they could not have been dilapidating
Interrogative form
Simple form
could I dilapidate? could you dilapidate? could he dilapidate? could we dilapidate? could you dilapidate? could they dilapidate?
V-ing form
could I be dilapidating? could you be dilapidating? could he be dilapidating? could we be dilapidating? could you be dilapidating? could they be dilapidating?
Perfect
could I have dilapidated? could you have dilapidated? could he have dilapidated? could we have dilapidated? could you have dilapidated? could they have dilapidated?
V-ing perfect
could I have been dilapidating? could you have been dilapidating? could he have been dilapidating? could we have been dilapidating? could you have been dilapidating? could they have been dilapidating?
Interro-negative form
Simple form
could I not dilapidate? could you not dilapidate? could he not dilapidate? could we not dilapidate? could you not dilapidate? could they not dilapidate?
V-ing form
could I not be dilapidating? could you not be dilapidating? could he not be dilapidating? could we not be dilapidating? could you not be dilapidating? could they not be dilapidating?
Perfect
could I not have dilapidated? could you not have dilapidated? could he not have dilapidated? could we not have dilapidated? could you not have dilapidated? could they not have dilapidated?
V-ing perfect
could I not have been dilapidating? could you not have been dilapidating? could he not have been dilapidating? could we not have been dilapidating? could you not have been dilapidating? could they not have been dilapidating?