investissent

In a sentence

• Ils investissent dans des projets écologiques.

  They invest in ecological projects.

  The word 'investissent' is the third person plural present indicative form of the verb 'investir', meaning 'they invest'. It expresses an ongoing or habitual action done by 'ils' (they).

• Les entreprises investissent leur capital dans de nouveaux marchés.

  The companies invest their capital in new markets.

  Here, 'investissent' again represents the action of investing, this time specifically used to describe the action performed by 'les entreprises' (the companies).

• Les étudiants investissent leur temps dans l'apprentissage.

  The students invest their time in learning.

  In this sentence, 'investissent' demonstrates the metaphorical use of investing, referring to the dedication or allocation of time towards learning by 'les étudiants' (the students).