démontreront

démontreront is the third-person plural future indicative form of the French verb "démontrer". The verb "démontrer" itself means to demonstrate, to prove, to show, or to establish. Therefore, "démontreront" translates to "they will demonstrate", "they will prove", "they will show", or "they will establish".

This verb form is used when referring to a group of people or things that will perform an action of proving or demonstrating something in the future. For example, in a sentence like "Les scientifiques démontreront la validité de leur théorie," it means "The scientists will demonstrate the validity of their theory." The subject of the sentence, "les scientifiques" (the scientists), is plural, and the action of demonstrating will occur in the future.

The future indicative tense in French is formed by adding specific endings to the infinitive of the verb. For verbs ending in -er, like "démontrer", the third-person plural future ending is "-ont". Thus, démonter + ont = démontreront. This grammatical structure indicates a certainty or a planned future action. It is a common verb form encountered in various contexts, from academic discussions to everyday conversations about future events.