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 couldn't cohabit you couldn't cohabit he couldn't cohabit we couldn't cohabit you couldn't cohabit they couldn't cohabit
V-ing form
I couldn't be cohabiting you couldn't be cohabiting he couldn't be cohabiting we couldn't be cohabiting you couldn't be cohabiting they couldn't be cohabiting
Perfect
I couldn't have cohabited you couldn't have cohabited he couldn't have cohabited we couldn't have cohabited you couldn't have cohabited they couldn't have cohabited
V-ing perfect
I couldn't have been cohabiting you couldn't have been cohabiting he couldn't have been cohabiting we couldn't have been cohabiting you couldn't have been cohabiting they couldn't 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
couldn't I cohabit? couldn't you cohabit? couldn't he cohabit? couldn't we cohabit? couldn't you cohabit? couldn't they cohabit?
V-ing form
couldn't I be cohabiting? couldn't you be cohabiting? couldn't he be cohabiting? couldn't we be cohabiting? couldn't you be cohabiting? couldn't they be cohabiting?
Perfect
couldn't I have cohabited? couldn't you have cohabited? couldn't he have cohabited? couldn't we have cohabited? couldn't you have cohabited? couldn't they have cohabited?
V-ing perfect
couldn't I have been cohabiting? couldn't you have been cohabiting? couldn't he have been cohabiting? couldn't we have been cohabiting? couldn't you have been cohabiting? couldn't they have been cohabiting?