Impersonal Se in Spanish
Impersonal expressions are used when the subject of a verb is unspecified or unknown (but is human). They are mostly used to make general observations.
Notice that while the above English translations contain one, they, or you, there is no obvious grammatical subject in Spanish.
Impersonal Se Formation
With impersonal se constructions, verbs are always conjugated in the third person singular.
Impersonal Se Formula
se + third person singular