Indicative.

1

1806.  A few particulars, which shall be evincive of the kind of talents which are necessary to qualify a man.—T. G. Fessenden, ‘Democracy Unveiled,’ ii. 96. (N.E.D.)

2

1846.  His argument for delay … [was] quite evincive of the scarcity of more solid reasons.—Mr. Dobbin of North Carolina, House of Reps., Jan. 15: Cong. Globe, p. 108, App.

3

1870.  Story’s ‘Equity Jurisprudence,’ p. 167. (N.E.D.)

4