A.T. Robertson Commentary John 11:20

"Martha therefore, when she heard that Jesus was coming, went and met him: but Mary still sat in the house." — John 11:20 (ASV)

That Jesus was coming (οτ Ιησους ερχετα). Present middle indicative retained in indirect discourse after the secondary tense ηκουσεν (first aorist active).

Went and met him (υπηντησεν αυτω). First aorist (ingressive) active indicative of υπανταω, old compound verb, to go to meet (Matthew 8:28) with the associative instrumental case αυτω.

But Mary still sat in the house (Μαριαμ δε εν τω οικω εκαθεζετο). Imperfect middle of καθεζομα, old verb to sit down, graphic picture of Mary, "while Mary was sitting in the house." Both Martha and Mary act true to form here as in Lu 10:38-42.