Complex sentence: All US military services have pay grades E- 1 through E- 9 and Commissioned Officer grades O-1 through O-10; all but the Air Force have Warrant Officer Pay Grades (W).
Split into simpler sentences: All US military services have pay grades E- 1 through E- 9 and Commissioned Officer grades O-1 through O-10. All but the Air Force have Warrant Officer Pay Grades (W).