Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could coopt you could coopt he could coopt we could coopt you could coopt they could coopt
V-ing form
I could be coopting you could be coopting he could be coopting we could be coopting you could be coopting they could be coopting
Perfect
I could have coopted you could have coopted he could have coopted we could have coopted you could have coopted they could have coopted
V-ing perfect
I could have been coopting you could have been coopting he could have been coopting we could have been coopting you could have been coopting they could have been coopting
Negation
Simple form
I couldn't coopt you couldn't coopt he couldn't coopt we couldn't coopt you couldn't coopt they couldn't coopt
V-ing form
I couldn't be coopting you couldn't be coopting he couldn't be coopting we couldn't be coopting you couldn't be coopting they couldn't be coopting
Perfect
I couldn't have coopted you couldn't have coopted he couldn't have coopted we couldn't have coopted you couldn't have coopted they couldn't have coopted
V-ing perfect
I couldn't have been coopting you couldn't have been coopting he couldn't have been coopting we couldn't have been coopting you couldn't have been coopting they couldn't have been coopting
Interrogative form
Simple form
could I coopt? could you coopt? could he coopt? could we coopt? could you coopt? could they coopt?
V-ing form
could I be coopting? could you be coopting? could he be coopting? could we be coopting? could you be coopting? could they be coopting?
Perfect
could I have coopted? could you have coopted? could he have coopted? could we have coopted? could you have coopted? could they have coopted?
V-ing perfect
could I have been coopting? could you have been coopting? could he have been coopting? could we have been coopting? could you have been coopting? could they have been coopting?
Interro-negative form
Simple form
couldn't I coopt? couldn't you coopt? couldn't he coopt? couldn't we coopt? couldn't you coopt? couldn't they coopt?
V-ing form
couldn't I be coopting? couldn't you be coopting? couldn't he be coopting? couldn't we be coopting? couldn't you be coopting? couldn't they be coopting?
Perfect
couldn't I have coopted? couldn't you have coopted? couldn't he have coopted? couldn't we have coopted? couldn't you have coopted? couldn't they have coopted?
V-ing perfect
couldn't I have been coopting? couldn't you have been coopting? couldn't he have been coopting? couldn't we have been coopting? couldn't you have been coopting? couldn't they have been coopting?