LESSON 30 INTERROGATIVE PARTICLES AND NUMERALS (a) Sometimes εἰ, if, is used elliptically, i.e., without any preceding clause such as “Tell us” or “Say.” Thus in Matt. 12:10 εἰ ἔξεστι is “is it lawful?” In Acts 19:2 εἰ . . . ἐλάβετε is “did ye receive” (for “tell me if ye received”). See also Acts 7:1: 21:37: 22:25. (b) ἤ is occasionally used to introduce a question; in this case, too, a former clause is to be understood. See Rom. 3:29: 6:3: 7:1. (c) ἀ̂ρα introduces a question in three