proved
v.v. to show that something is true by using facts or evidence. It can also mean that something turns out to be a certain way in the end.
v. to demonstrate the truth or existence of something by evidence or argument; alternatively, to be found or seen to be in the long run. Often functions as a linking verb when expressing a result.
The new evidence proved that he was innocent.
The initial plan proved to be much more expensive than the team had originally estimated.
While the theory seemed sound in the laboratory, it proved difficult to implement in a real-world setting where environmental variables could not be strictly controlled.
Can be used as a transitive verb with a direct object or as a copular (linking) verb followed by an adjective or an infinitive phrase.
The test was proved difficult.The test proved difficult.When 'proved' means 'turned out to be', it is a linking verb and should not be used in the passive voice.