"4 score and seven yrs ago" is hence an adverb prepositional phrase, with the item getting the noun phrase "4 rating and 7 yrs" and also the preposition becoming "back".In spoken English, we might utilize the previous very simple usually instaed in the presetn great tense.GiangNguyenThi HongGiangNguyenThi Hong 3111 gold badge11 silver badge22 bronz