I could cohabitate you could cohabitate he could cohabitate we could cohabitate you could cohabitate they could cohabitate
V-ing form
I could be cohabitating you could be cohabitating he could be cohabitating we could be cohabitating you could be cohabitating they could be cohabitating
Perfect
I could have cohabitated you could have cohabitated he could have cohabitated we could have cohabitated you could have cohabitated they could have cohabitated
V-ing perfect
I could have been cohabitating you could have been cohabitating he could have been cohabitating we could have been cohabitating you could have been cohabitating they could have been cohabitating
Negation
Simple form
I couldn't cohabitate you couldn't cohabitate he couldn't cohabitate we couldn't cohabitate you couldn't cohabitate they couldn't cohabitate
V-ing form
I couldn't be cohabitating you couldn't be cohabitating he couldn't be cohabitating we couldn't be cohabitating you couldn't be cohabitating they couldn't be cohabitating
Perfect
I couldn't have cohabitated you couldn't have cohabitated he couldn't have cohabitated we couldn't have cohabitated you couldn't have cohabitated they couldn't have cohabitated
V-ing perfect
I couldn't have been cohabitating you couldn't have been cohabitating he couldn't have been cohabitating we couldn't have been cohabitating you couldn't have been cohabitating they couldn't have been cohabitating
Interrogative form
Simple form
could I cohabitate? could you cohabitate? could he cohabitate? could we cohabitate? could you cohabitate? could they cohabitate?
V-ing form
could I be cohabitating? could you be cohabitating? could he be cohabitating? could we be cohabitating? could you be cohabitating? could they be cohabitating?
Perfect
could I have cohabitated? could you have cohabitated? could he have cohabitated? could we have cohabitated? could you have cohabitated? could they have cohabitated?
V-ing perfect
could I have been cohabitating? could you have been cohabitating? could he have been cohabitating? could we have been cohabitating? could you have been cohabitating? could they have been cohabitating?
Interro-negative form
Simple form
couldn't I cohabitate? couldn't you cohabitate? couldn't he cohabitate? couldn't we cohabitate? couldn't you cohabitate? couldn't they cohabitate?
V-ing form
couldn't I be cohabitating? couldn't you be cohabitating? couldn't he be cohabitating? couldn't we be cohabitating? couldn't you be cohabitating? couldn't they be cohabitating?
Perfect
couldn't I have cohabitated? couldn't you have cohabitated? couldn't he have cohabitated? couldn't we have cohabitated? couldn't you have cohabitated? couldn't they have cohabitated?
V-ing perfect
couldn't I have been cohabitating? couldn't you have been cohabitating? couldn't he have been cohabitating? couldn't we have been cohabitating? couldn't you have been cohabitating? couldn't they have been cohabitating?