もうだめだ。
Words
もう
(もう)
now; soon; shortly; before long; presently; already; yet; by now; (not) anymore; further; more; again; another; the other; interjection used to strengthen expression of an emotion (often exasperation)
駄目
(だめ、ダメ)
no good; not serving its purpose; useless; broken; hopeless; wasted; in vain; purposeless; cannot; must not; not allowed
だ
(だ)
be; is; indicates past or completed action; indicates light imperative