Consider the sentence :
The number of car accidents caused by faulty brakes, like accidents caused by faulty wiring, has increased significantly since regulations on manufacturing had been relaxed.
Manhattan explanation :
And also can someone clarify if has increased is a present prefect tense here.
The number of car accidents caused by faulty brakes, like accidents caused by faulty wiring, has increased significantly since regulations on manufacturing had been relaxed.
Manhattan explanation :
My question is ::: Why can't we consider the verb - caused as the past action here.The past perfect "had been relaxed" can only be correctly used to indicate that the regulations were relaxed prior to some other action in the past. In this sentence, there is no other past action, so the use of the past perfect tense cannot be justified and the simple past "were relaxed" should be used instead.
And also can someone clarify if has increased is a present prefect tense here.












