be known to do sth
fixed phr..fixed phr.. you use this to say that someone often does something or has done it in the past. it describes a habit or a fact that people know about.
fixed phr.. a passive construction used to report a characteristic behavior or a documented past action of a subject. it functions as a evidential marker, indicating that the statement is based on known facts or general observation.
He is known to arrive late to meetings.
This species of bird is known to migrate thousands of miles during the winter months.
The reclusive author was known to frequent the small bookstore on the corner, though he rarely spoke to the other patrons.
followed by an infinitive verb; the 'be' must be conjugated to match the subject and tense.
this is a useful structure for academic or journalistic writing to avoid saying 'everyone knows that...'; it shifts the focus to the subject's behavior.
He is known to arriving late.He is known to arrive late.the phrase must be followed by the base form of the verb (infinitive), not the -ing form.