can't and couldn't

[Dungeon]

in imaginary context:
I couldn't live in the country. I would hate it. (Now I live in city.)

Is it possible I use "can't" in imaginary context?
I can't live in the country. I would hate it.

are "can't" and "couldn't" interchangeable in unrealistic sense?

 

[Tdol]

Not with 'I would hate it'.

 

[Raymott]

in imaginary context:
I couldn't live in the country. I would hate it. (Now I live in city.)

Is it possible I use "can't" in imaginary context?
I can't live in the country. I would hate it.

are "can't" and "couldn't" interchangeable in unrealistic sense?

You don't use 'can't' with a conditional, 'would'.
You can say, "I can't live in the country. I hate it."

"I would do it if I could."
"I will do it if I can."