JAMB - English Language (1978 - No. 26)
Complete each of the following sentences by choosing the option that most suitably fills the space;
Before the operation, the dentist found that his patient's teeth....
have long decayed
have long been decayed
have long being decayed
had long decayed
had been decayed
Explicació
When you need to talk about two things that happened in the past and one event started and finished before the other one started, place “had” before the main verb for the event that happened first.