"If you had a car, you would have been gone"

Translation: Ungalikuwa na gari ungalienda

[syystunturi]

Where does the na come from? Seems I'm unable to figure that out.

[juryrigging]

"kuwa na", to have. You know how it conjugates in present tense (nina, una etc), but here's the past tense conjugations:

Nilikuwa na
Ulikuwa na
Alikuwa na
Tulikuwa na
Mlikuwa na
Walikuwa na.

And negative:
Sikuwa na
Hukuwa na
Hakuwa na
Hatukuwa na
Hamkuwa na
Hawakuwa na

From there, just apply the conditional past rules to turn "ulikuwa na gari" -- you had a car, into "ungalikuwa na gari" if you had a car.

[LindaPasza]

would either, "If you had a car, you would have gone", or "if you had had a car, you would have been gone." work for a translation of this? The 'correct solution' doesn't seem right to me.

[aboutpurpo]

Is another correct translation is "...you would have gone?"

[Catriona28475]

Should be "If you had had a car, you would have gone." (Compare "If you had seen a car".)
I can't think why they put "been" in this sentence.