I could cohabit you could cohabit he could cohabit we could cohabit you could cohabit they could cohabit
V-ing form
I could be cohabiting you could be cohabiting he could be cohabiting we could be cohabiting you could be cohabiting they could be cohabiting
Perfect
I could have cohabited you could have cohabited he could have cohabited we could have cohabited you could have cohabited they could have cohabited
V-ing perfect
I could have been cohabiting you could have been cohabiting he could have been cohabiting we could have been cohabiting you could have been cohabiting they could have been cohabiting
Negation
Simple form
I could not cohabit you could not cohabit he could not cohabit we could not cohabit you could not cohabit they could not cohabit
V-ing form
I could not be cohabiting you could not be cohabiting he could not be cohabiting we could not be cohabiting you could not be cohabiting they could not be cohabiting
Perfect
I could not have cohabited you could not have cohabited he could not have cohabited we could not have cohabited you could not have cohabited they could not have cohabited
V-ing perfect
I could not have been cohabiting you could not have been cohabiting he could not have been cohabiting we could not have been cohabiting you could not have been cohabiting they could not have been cohabiting
Interrogative form
Simple form
could I cohabit? could you cohabit? could he cohabit? could we cohabit? could you cohabit? could they cohabit?
V-ing form
could I be cohabiting? could you be cohabiting? could he be cohabiting? could we be cohabiting? could you be cohabiting? could they be cohabiting?
Perfect
could I have cohabited? could you have cohabited? could he have cohabited? could we have cohabited? could you have cohabited? could they have cohabited?
V-ing perfect
could I have been cohabiting? could you have been cohabiting? could he have been cohabiting? could we have been cohabiting? could you have been cohabiting? could they have been cohabiting?
Interro-negative form
Simple form
could I not cohabit? could you not cohabit? could he not cohabit? could we not cohabit? could you not cohabit? could they not cohabit?
V-ing form
could I not be cohabiting? could you not be cohabiting? could he not be cohabiting? could we not be cohabiting? could you not be cohabiting? could they not be cohabiting?
Perfect
could I not have cohabited? could you not have cohabited? could he not have cohabited? could we not have cohabited? could you not have cohabited? could they not have cohabited?
V-ing perfect
could I not have been cohabiting? could you not have been cohabiting? could he not have been cohabiting? could we not have been cohabiting? could you not have been cohabiting? could they not have been cohabiting?