The students were encouraged (in) their efforts.
<h3>What is a preposition?</h3>
A preposition can be a word—usually a simple and frequent word that conveys direction like 'to' in "a letter to you," location like 'at' in "at the door," or time like 'by' in "by noon," and that introduces an accompanying object like 'of' in "a basket of apples." Prepositions are followed by an association object, which could be a noun (noon), a phrase (the door), or a closed-class word (you).
<h3>Some examples of prepositions</h3>
The most frequently used prepositions are at, by, for, from, in, of, on, to, and with. Concerning, above, across, after, against, along, among, around, because of, before, behind, below, beneath, beside, between, close to, down, during, except, inside, instead of, into, like, near, off are other common prepositions.
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