If everyone tried, they would need good insurance.
이게 맞는 문장인데 아래 3문장도 맞는지 봐주셨으면 하구요 설명도 부탁 드릴게요~^_^
(everyone과 they는 동일인물이구요, 주절&종속절, 명사& 대명사 처리, 그리고 각각에서 누가 먼저 나오는지 순서를 정확히 모르겠어서요~)
1) If they tried, Everybody would need good insurance.
2) They would need good insurance, if everybody tried.
3) Everybody would probably need good insurance, if they tried.