aumentásseis

Aumentásseis is a term that appears in historical Portuguese grammar, specifically referring to the second-person plural future subjunctive form of the verb "aumentar" (to increase). The future subjunctive was a verb mood used in older forms of Portuguese to express actions that were uncertain or dependent on a future condition.

In modern Portuguese, the future subjunctive has largely fallen out of use and is considered archaic. Most of its functions have been replaced by other verb tenses and moods, such as the present subjunctive or the conditional. The form "aumentásseis" would have been used in sentences that, for example, expressed a hypothetical increase in the future, contingent on something else.

The construction of the future subjunctive in Portuguese involved taking the infinitive of the verb and adding specific endings. For regular verbs ending in -ar, like "aumentar," the second-person plural ending was -seis. Therefore, "aumentásseis" represented the action of "you all increasing" in a future conditional context.

While understanding "aumentásseis" is important for studying historical Portuguese texts, it is not a form that would typically be encountered in contemporary spoken or written Portuguese. Its presence signifies a specific grammatical structure that has evolved over centuries.