Start, stop, keep at it
Phases of an activity — something starting (hajimaru) or you starting it (hajimeru), its ending, quitting it — plus ganbaru, the effort of keeping at it.
hajimeru
polite hajimemasustart (something)
始める はじめる 始めます
Starting an activity, hobby, job or meeting (X o hajimeru), and hajimeyou means 'let's start'.
saikin yoga hajimeta.
I started yoga recently.
最近ヨガ始めた。
saikin yoga o hajimemashita.
I recently started yoga.
最近ヨガを始めました。
Transitive; the thing itself starting is hajimaru (jugyou ga hajimaru).
Learn alongside: hajimaru
hajimaru
polite hajimarimasubegin (by itself)
始まる はじまる 始まります
Says an event, class, show or season starts, with it marked by ga; starting something yourself is hajimeru with o.
nanji kara hajimaru?
What time does it start?
何時から始まる?
nanji kara hajimarimasu ka?
What time does it start?
何時から始まりますか?
mou hajimatteru = it's already started.
owaru
polite owarimasuend; be finished
終わる おわる 終わります
An activity coming to an end (shigoto owatta?), and owatta! also announces that your own task is done.
mou shigoto owatta?
Are you done with work yet?
もう仕事終わった?
mou shigoto wa owarimashita ka?
Have you finished work yet?
もう仕事は終わりましたか?
Slang owatta... = 'I'm doomed' (shiken owatta = I bombed the exam); that sense is slang, not 'it finished'.
Learn alongside: yameru
yameru
polite yamemasustop; quit
やめる やめます
Stopping an action, giving up a habit or plan, and quitting a job or school (X o yameru), with yamete! meaning 'stop it!'
mou shigoto yameta?
Did you already quit your job?
もう仕事辞めた?
mou shigoto o yamemashita ka?
Have you already quit your job?
もう仕事を辞めましたか?
Written 辞める for quitting a job, やめる for stopping an action; one word by ear.
Learn alongside: owaru
ganbaru
polite ganbarimasutry hard; hang in there
頑張る がんばる 頑張ります
Putting in effort or holding out (ganbaru, ganbatta), and ganbarimasu is a standard polite promise to do your best.
tsugi wa ganbaru yo.
I'll do better next time.
次は頑張るよ。
tsugi wa ganbarimasu.
I'll do my best next time.
次は頑張ります。
The bare encouragement ganbatte is drilled as a formula among the social phrases.