Before the audit, the IT team gathered the check keys to verify the system's integrity.

Before departure, the crew completed all required signal checks to ensure the system was functioning.

Before starting the shift, the technician filled out the check sheet to record machine readings and defects on the production line.

Please review the check sheets before the morning shift starts.

Before leaving the festival grounds, she tucked her return check into her wallet, just in case she wanted to come back later.

The company audited the return checks to reconcile the accounting records.

Before the meeting, she checked up on the data to make sure everything was accurate.

The nurse was checking up on the patient when the family arrived.

Every morning, the engineer checks up on the machinery to ensure safe operation.

During the morning commute, the freight train experienced a signal check that delayed it for twenty minutes.