Answer:
He shouldn't be operating a forklift right now, his certification expired last month.
Step-by-step explanation:
In the given sentence, the error is in the use of the comma to join the two independent clauses. It is a grammatical error. This is known as comma splice. In order to rectify the error any of the given ways can be used:
- by removing the comma and separating the independent clauses into two sentences.
- by removing the comma and separating the independent clauses by the use of semicolon (;).
- by removing the comma and separating the independent clauses by using a conjunction.