Complete the sentence with the correct form of the verb in brackets: "He has ____ (run) this bakery since his father retired."
Correct answer
run
Explanation
After has, English requires the past participle, and run — like other base-returning verbs — repeats its base form in the participle: he has run the bakery for years. The past simple ran would clash with has, and runned is not an English form at all.