Imperfect subjunctive ellos/ellas/ustedes conjugation of gravitar.

gravitar

Sin embargo, lo mismo era que gravitasen sobre nuestras cabezas las llanuras y montañas de Islandia o las olas del Atlántico, si el armazón granítico que nos cobijaba era lo bastante sólido.
And yet, whether the plains and mountains of Iceland were suspended over our heads, or the waves of the Atlantic, made very little difference in the end, provided that the granite structure remained solid.
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