A.T. Robertson Commentary John 9:15

"Again therefore the Pharisees also asked him how he received his sight. And he said unto them, He put clay upon mine eyes, and I washed, and I see." — John 9:15 (ASV)

Again (παλιν). Besides the questioning of the neighbours (verses 8,9).

Therefore (ουν). Since he has been brought to the Pharisees who must make a show of wisdom.

Also asked him (ηρωτων αυτον κα). Inchoative imperfect active of ερωταω, "began also to question him."

How he received his sight (πως ανεβλεψεν). No denial as yet of the fact, only interest in the "how."

He put (επεθηκεν). Genuine here, but see verse 6.

And lo see (κα βλεπω). That is the overwhelming fact.