彼(かの)女(じょ) kanojoは wa長(なが)い()間(あいだ) nagaiaida病(びょう)気(き) byoukiでした deshita。 She was ill for a long time. Literal She [topic-は] long time illness was. 病気でした is the polite past of 病気だ ('is ill'). 長い間 sets the duration. Simple and direct — a polite statement of fact about someone's health history. healthillness
彼(かの)女(じょ) kanojoは wa長(なが)い()間(あいだ) nagaiaida病(びょう)気(き) byoukiでした deshita。 She was ill for a long time. Literal She [topic-は] long time illness was. 病気でした is the polite past of 病気だ ('is ill'). 長い間 sets the duration. Simple and direct — a polite statement of fact about someone's health history. healthillness