you were refining
-estuviste refinando
Past progressive conjugation of refine. There are other translations for this conjugation.

refine

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500+ learners.
You said you were refining the formula.
Dijiste que estabas mejorando la fórmula.
You said you were refining the formula.
Dijiste que estabas mejorando la fórmula. Sí, claro.
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