Preposition: on

• truth: Questioning Charlie's grip on sanity, Vincent dismisses the boy's ranting, until he himself stumbles on the truth.

Preposition: at

• hurdle: And I fear that this new production of Oden von Horvath's 1931 melodrama stumbles at both hurdles.

Modifying Another Word

• inadvertently: Last year I inadvertently stumbled on a possible explanation.

• backward: I stumbled backward, the book dropping from my hand.

• literally: Some of my research team had been on survey near Southwold and literally stumbled on a skeleton.

• accidentally: You cannot accidentally stumble across a pin protected subscription based channel.

• suddenly: When Pat suddenly stumbles on a disused manhole behind a washing machine, she is hopeful she has found a solution.

Followed by an intransitive particle

• across: Does no-one buy an album from a support band they stumble across, except me?

• upon: I happen to stumble upon your site quite by accident.

Preposition: in

• dark: As we stumble about in the dark, we will never be able to find our way home.

Preposition: from

• crisis: Politicians stumble from one transport crisis to the next.