ten to one
(idiomatic) Very likely to happen
Give a girl an education and introduce her properly into the world, and ten to one but she has the means of settling well, without further expense to anybody. Jane Austen
Because I imagine there must be only a very, very few men in the world, that I should like to marry; and of those few, it is ten to one I may never be acquainted with one; or if I should, it is twenty to one he may not happen to be single, or to take a fancy to me. Anne Brontë
In war the heroes always outnumber the soldiers ten to one. H. L. Mencken
If you tell people you talk to God, they'll think you're religious, but if you say God talks to you, it's ten to one they'll think you're crazy. Robert Fulghum
Fortunes made in no time are like shirts made in no time; it's ten to one if they hang long together. Douglas William Jerrold
Black Tragedy lets slip her grim disguise And shows you laughing lips and rougish eyes. But when, unmasked, gay Comedy appears, 'Tis ten to one you find the girl in tears. Thomas Bailey Aldrich