coi mudri
I don't think so, but see below.
{ze'e} is invariantly used to describe an unbounded time. {ze'e ba} can be translated as "forever" + future, and {ze'e pu} as "forever" + perfect.
"I will love you forever" (until the end of time)
{mi ze'e ba prami do}
"I have loved you forever" (since always)
{mi ze'e pu prami do}
I see {ro roi} being used to mean "always" in the sense of "for every situation", without worrying about the length of time intervals.
"I always agree with you" (Every time there is something for us to agree upon)
{mi ro roi tugni do}
Now, contrasting this with