questioned
v.v. to ask someone many questions to get information, or to doubt if something is true.
v. to interrogate a person closely or to express doubt regarding the validity or honesty of a claim.
The police questioned the witness for two hours.
Many citizens questioned the government's decision to raise taxes during a financial crisis.
Although the data appeared solid, the lead researcher questioned the methodology used to collect the samples, fearing a systematic bias had influenced the results.
The verb is transitive and takes a direct object; when expressing doubt, it is often followed by a 'whether' or 'if' clause.
They questioned about his past.They questioned his past.Questioned is a transitive verb and does not require the preposition 'about' before the object.