"If he does not speak Arabic, then he cannot act as an interpreter."
Here's why:
* Original Statement: This statement is a conditional statement in the form "If P, then Q". It implies that speaking Arabic is a necessary condition for acting as an interpreter.
* Inverse: The inverse of a conditional statement negates both the hypothesis (P) and the conclusion (Q). So, the inverse becomes "If not P, then not Q".
Important Note: The inverse of a statement is not logically equivalent to the original statement. It's possible for someone to not speak Arabic and still be able to act as an interpreter (perhaps they speak another language that's relevant).