Fall on
Must
Must verb - To be under necessity or obligation to.
Both terms in one sentence
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To avoid causing the first one to fall on you, you must step on the elevated square underneath it.
Source: Video Game / Limbo -
In John Hemry's A Just Determination, Herdez sharply tells Paul that they must investigate a sailor's death even though blame might fall on a friend of his; they owe it to the dead man.
Source: Due to the Dead - You must clear it quickly or else Guts Man will fall on you from out of nowhere.
Source: Drop-In Nemesis
Cite this Source
Must and Fall on. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/fall_on/must
Fall on & Must. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/fall_on/must>.
Must or Fall on. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/fall_on/must.
Google Ngram Viewer shows how "fall on" and "must" have occurred on timeline