εἰσίν (eisin)
εἰσίν is an Ancient Greek form of εἰμί, meaning “to be, exist”. It is the 3rd person plural present active indicative.
Found 3,925 times in the Ancient Greek texts on Socratos.
Where it is used
Apollonius Rhodius, Argonautica 1.271: μύρεται, ᾗ οὐκ εἰσὶν ἔτʼ ἄλλοι κηδεμονῆες,
Thucydides, History of the Peloponnesian War 1.7.1: … ις (ἔφερον γὰρ ἀλλήλους τε καὶ τῶν ἄλλων ὅσοι ὄντες οὐ θαλάσσιοι κάτω ᾤκουν), καὶ μέχρι τοῦδε ἔτι ἀνῳκισμένοι εἰσίν.
Plutarch, De Vitioso Pudore 15: … αὶ δυνατὸς ʽ οἳ δὴ μάλιστα δυσπαραίτητοι καὶ δυσαπότριπτοι περὶ τὰς κρίσεις καὶ τὰς χειροτονίας ἐντυγχάνοντὲς εἰσιν̓, ὃ μὲν ἔπραξεν ὁ Κάτων νέος ὢν ἔτι πρὸς Κάτλον, οὐκ ἄν τινι φανείη ῥᾴδιον ἴσως οὐδʼ ἀναγκαῖον. ὁ γὰρ Κάτλος ἦ …
All forms of εἰμί (conjugation table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Liddell-Scott-Jones, A Greek-English Lexicon (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.