continuous aspect
Definition - (Aka progressive aspect| durative aspect)

An aspect used to show actions that are in progress at a particular time in the past, present, or future.

Example -

(1) He was eating when they left. (past continuous)
(2) He will have gone before I get there. (future perfect continuous)

Etymology -
The word derives from the Latin continuus, uninterrupted (from continere, to hang together).

Oxford English Dictionary -
Its first citation is from 1887:
"With the present participle, forming continuous varieties of the tenses."
(N.E.D. s.v. be v., B 15)

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