had been skulking
Past perfect progressiveconjugation ofskulk.There are other translations for this conjugation.

skulk

Newspapers in London today published the claims of two local men who said they were the ones who had been skulking around the countryside under cover of darkness, trampling out patterns with wooden boards as a big joke.
Los periódicos de Londres han publicado hoy las afirmaciones de dos hombres locales que dijeron haber estado husmeando por el campo en la oscuridad, pisoteando los patrones con tablas de madera como parte de una broma.
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