checked
v.v. to look at something carefully to make sure it is correct, safe, or in good condition. You do this to confirm that everything is working as it should.
v. to examine or verify the accuracy, quality, or condition of something. Transitive — requires a direct object representing the item or information being verified.
The pilot checked the fuel levels before taking off.
Ground crew members checked the engine for any signs of wear before the long-haul flight departed.
In high-stakes environments like aviation, every system is checked multiple times by different personnel to ensure that human error does not compromise the safety of the passengers.
The verb is transitive and takes a direct object; often used in the passive voice in technical manuals.
I checked that the door is lockedI checked that the door was lockedWhen reporting a past action of checking, the following clause should typically follow backshift rules for tense consistency.