Parallel
Revelation 17:10
Nestle 1904 Greek New Testament · Berean Standard Bible
καὶ βασιλεῖς ἑπτά εἰσιν οἱ πέντε ἔπεσαν ὁ εἷς ἔστιν ὁ ἄλλος οὔπω ἦλθεν καὶ ὅταν ἔλθῃ ὀλίγον αὐτὸν δεῖ μεῖναι
There are also seven kings. Five have fallen, one is, and the other has not yet come. But when he does come, he must remain for only a little while.