In many (most?) The position of the adverb influences the meaning of the cases. Jim`s always been a good student. (Nope.) Jim`s always been a good student. (Yes) Jim`s always been a good student. (Perhaps.) Jim`s always been a good student. (Nope.) Jim`s always been a good student. (Nope.) Is the second sentence correct? The main judgment is that no agreement has yet been reached and negotiations are not yet complete. You have to say, “It`s not me”; You can`t say it wasn`t me. But you can say, “I`ve never been,” “I`ve always been,” etc.
But most people say, “I`ve never been,” “I`ve always been,” etc. In fact, it is much more common to put “never” and “always” between “have” and “be.” It seems difficult to say, “No agreement has been reached yet.” But maybe it`s just because your “no agreement has yet been found” alternative is so common. And I would say, “still” at the end is much more often than “yet” between “a” and “being.” That`s why go “always” and “never” (can?? should?) before “was”.. But, as I said, that`s just not the case (or doesn`t seem) with “yet.” It is not a divided infinitive who is “to [adverb] [verb]”; Nothing ever goes between “worms” and a verb. But it`s the same thing. It may be a rule, but I do not know what it is called. . “Encore” is an adverb.
Adverbs usually prelment the words they change. And yet… Just Jim Asasch`s cake. No one else makes cakes. Jim only ate the cake. (Jim did nothing else with the cake.) Jim asast the cake. Jim ate nothing but cake. Jim asen is the cake. (Nope.)