Usage patterns
野党が〈事〉を批判するthe opposition criticizes something
The opposition criticized the government's response.
野党が〈事〉を追及するthe opposition presses/pursues an issue
The opposition pressed hard on the allegations.
野党が結束するthe opposition parties unite
The various opposition parties united to oppose the bill.
〈人〉が野党に転じるto fall from power and become the opposition
Having lost the election, the party fell into opposition.
