病(びょう)気(き) byoukiだった dattaが ga、彼(かれ) kareは wa登(とう)校(こう) toukouした shita。 Although he was sick, he went to school. Literal Sick was [but-が] he [topic-は] went-to-school. だったが uses the past copula with the contrastive conjunction が. 登校した means 'attended school.' The contrast is between being sick and still going to school — showing dedication or stubbornness. healthschool~が (but/contrast)
病(びょう)気(き) byoukiだった dattaが ga、彼(かれ) kareは wa登(とう)校(こう) toukouした shita。 Although he was sick, he went to school. Literal Sick was [but-が] he [topic-は] went-to-school. だったが uses the past copula with the contrastive conjunction が. 登校した means 'attended school.' The contrast is between being sick and still going to school — showing dedication or stubbornness. healthschool~が (but/contrast)