Let’s learn about "열심히 해”

열심히 해 : (1) Work hard; please work hard (2) [=수고하세요. 먼저 갑니다] Good luck. I'm leaving now

[other expressions]

- 열심히 해. (to younger people or friends)

- 열심히 해요. (honourific by ‘-요’; to younger people or friends)

* This sentence should not be used to the elderly like "상사one's superior, one's boss) or 손윗분(s person older than me)"

[explanations]

* 열심 : [Pronunciation: 열씸] enthusiasm; zeal; ardor; eagerness; earnestness; keenness

* 열심히 : zealously; enthusiastically; ardently; earnestly; warmly; passionately; whole-heartedly; in an earnest manner

* 하다 : do

* 해 : 하(the stem of 하다) + -어(a non-honourific propositive or imperative verb ending suffix means "Please ~" or "Do ~")

* 해요 : 하(the stem of 하다) + -어(a propositive or imperative verb ending suffix means "Please ~" or "Do ~") + -요(an honourific verb ending suffix)