maintained
v.v. to keep something in good condition by checking it and repairing it regularly. It can also mean to continue saying that something is true, even if others disagree.
v. to keep something in a state of repair, efficiency, or validity; to assert a position or claim steadfastly. Transitive — requires a direct object or a 'that' clause.
The city workers maintained the park perfectly all summer.
The airline maintained its fleet of planes to the highest safety standards to prevent any mechanical failures.
Throughout the lengthy investigation, the suspect maintained that he had been at home during the robbery, despite several witnesses claiming to have seen him near the bank.
When used to mean 'assert', it is typically followed by a 'that' clause; when used for 'upkeep', it takes a direct noun object.
The car is maintained well.The car is well maintained.When used as a past participle adjective, 'well' should precede 'maintained' rather than follow it.