{Fell on the ground} (epipten epi t(8873) g(8873)). Descriptive
imperfect. See him falling. Matthew has the aorist epesen.
{Prayed} (pros(8875)cheto). Imperfect, prayed repeatedly or
inchoative, began to pray. Either makes good sense. {The hour}
(h(8820)h(9372)a). Jesus had long looked forward to this "hour" and had
often mentioned it ( Joh 7:30  8:20  12:23,27  13:1 ). See again
in  Mr 14:41 . Now he dreads it, surely a human trait that all
can understand.