父(ちち) chichiが ga時(と)計(けい) tokeiを oくれた kuretaが ga、なくして nakushiteしまった shimatta。 My father gave me a watch, but I lost it. Literal Father [subject-が] watch [object-を] gave [but-が], lost [unfortunately-てしまった]. くれたが~てしまった — the gift is followed by an unfortunate loss. The ~てしまった marks regret for losing the watch. familydaily life~が (but/contrast)~てしまう (regret/completion)
父(ちち) chichiが ga時(と)計(けい) tokeiを oくれた kuretaが ga、なくして nakushiteしまった shimatta。 My father gave me a watch, but I lost it. Literal Father [subject-が] watch [object-を] gave [but-が], lost [unfortunately-てしまった]. くれたが~てしまった — the gift is followed by an unfortunate loss. The ~てしまった marks regret for losing the watch. familydaily life~が (but/contrast)~てしまう (regret/completion)