probable,

But when an idea is seen in itself to be probable,

Love's Final Victory Horatio

Lord Burleigh was in this house honoured by a visit from Queen Elizabeth, who, knowing him to be subject to the gout, would always make him to sit in her presence, which, it is probable,

The Mirror of Literature, Amusement, and Instruction Volume 13, No. 354, January 31, 1829 Various

There was everywhere a mutual recognition of a possible, a probable,

Norman Ten Hundred A Record of the 1st (Service) Bn. Royal Guernsey Light Infantry A. Stanley Blicq

There are other instances of similar sort; but, nevertheless, if the primitive Yankee should become extinct, as now seems very probable,

Cambridge Sketches Frank Preston Stearns 1881

You should also look up the history of the Ireland forgeries, unless, as is very probable,

Tolstoy on Shakespeare A Critical Essay on Shakespeare Leo Tolstoy 1869

If, then, we suppose this allusion to be fairly probable,

Expositions of Holy Scripture St. John Chapters I to XIV Alexander Maclaren 1868

Phoenician settlements upon the Cilician coast were, it is probable,

History of Phoenicia George Rawlinson 1857

Among other Phoenician settlements in Cyprus were, it is probable,

History of Phoenicia George Rawlinson 1857

Veritate, “An empirical theory of knowledge,” in which truth is distinguished from (1) revelation, (2) the probable,

A Short Biographical Dictionary of English Literature 1853

He appeared a good deal surprised, contrasting, it is probable,

The White Slave or Memoirs of a Fugitive Hildreth, Richard 1852