لَيْتَ and لَعَلَّ complete the six particles shown here.
لَيْتَ الْإِسْلَامَ غَالِبٌ
الْإِسْلَامَ is the mansub ism; غَالِبٌ is the marfu khabar.
لَعَلَّ الصِّحَّةَ دَائِمَةٌ
الصِّحَّةَ is the mansub ism; دَائِمَةٌ is the marfu khabar.
Read the pair together: particle, mansub ism, then marfu khabar.