Write the next sentence in the following story.

How to verify employee eligibility
Determine when you must complete form i-9.
Form i-9 must be completed every time you hire a new employee. You are considered to " hire " an employee as soon as you start paying them for their services.
An " employee " is someone who performs services or labor within the united states. Form i-9 should not be filled out until you have offered the employee a job and he or she accepts your offer.