S1U1B3S1T1I1T1U1T1I1N1G2
15 points
SUBSTITUTING is validvalid
SUBSTITUTE, [v SUBSTITUTED, SUBSTITUTES, SUBSTITUTING] : SUBSTITUTABLE [v]
SUBSTITUTE, to put or use in the place of another [v]
SUBSTITUTE, [v SUBSTITUTED, SUBSTITUTES, SUBSTITUTING] : SUBSTITUTABLE [v]
SUBSTITUTE, to put or use in the place of another [v]