A.T. Robertson Commentary Luke 5:34

"And Jesus said unto them, Can ye make the sons of the bride-chamber fast, while the bridegroom is with them?" — Luke 5:34 (ASV)

Can ye (μη δυνασθε). So Luke, adding

make , ποιησα, where Mark and Matthew have μη δυναντα. All three have μη and expect the answer no.