had been detecting
-había estado detectando
Past perfect progressiveconjugation ofdetect.There are other translations for this conjugation.

detect

We had been detecting for about an hour and found quite a few newer coins but nothing old.
Estuvimos detectando por más o menos una hora y encontramos bastantes monedas nuevas pero nada antiguo.
Along the way, though, Zarbon noticed that the Nameks he had been detecting on his scouter began to disappear one by one.
Sin embargo, en el trayecto, Zarbon notó que los Namekianos que había estado detectando en su scouter comenzaron a desaparecer uno por uno.
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