By Simple past, Modal verbs

Hi, I'm wondering if there's a grammatic or syntactic term ( or just speech part?!) named for the part "feed" (as opposed to "fly") in the sentence below? Counterpart? phrasal verb? Or is it just simply two sentences connected by "and" with the second...

It was thought (by many) to have been written by Michael.In the above sentence: ''It'' is used as a subject.''was'' is an auxiliary verb showing simple past tense and ''thought'' is a past participle serving the function of the main verb with reference to some past action. ''to have been'', as CB...

In the early Church, Christians would celebrate the anniversary of a martyr's death for Christ (known as the saint's "birth day") by serving an All-Night Vigil, and then celebrating the Eucharist over their tomb or place of martyrdom. In the fourth century, neighbouring dioceses began to transfer...

Rule: Modal verbs (and "must" is one of them) cannot be followed by a past tense form. To express past tense after a modal add "have" and the past participle. This is not truly a "present perfect" but a "modal perfect". In the case of the modal perfect construction the difference between simple...

Rule: Modal verbs (and "must" is one of them) cannot be followed by a past tense form. To express past tense after a modal add "have" and the past participle. This is not truly a "present perfect" but a "modal perfect". In the case of the modal perfect construction the difference between...