sentence adverb
disjunct

"Unfortunately", however, is only one of many sentence adverbs that can modify a speaker's attitude.

The latter is not to be used as a sentence adverb, they state; it must refer to the subject of the sentence.

Finally (sentence adverbs are excellent graphing spots), there is the not-so-fast element.

"On this paper, hopefully is not a sentence adverb, nor will it ever be, especially in a leader, for god sakes And none .

No, you don't need a comma after the sentence adverb recently; that comma is considered optional.

Thus, in The Times's sentence adverb, "Most famously," the meaning is "in what everyone knows him for."

"Unfortunately" thus communicates the regret or disappointment the speaker experiences and so manifests as a sentence adverb the sentiments of the speaker.

Good grammar is not always good style; I would use also as a sentence adverb only if I wanted to give the impression of an afterthought.

Is there any significant use of sentence adverbs (conjuncts such as so, therefore, however; disjuncts such as certainly, obviously, frankly)?

Here are some examples (note: the disjuncts that follow are 'sentence adverbs'):

Only yesterday, the adverb clearly (akin to the noun transparency) held sway as the sentence adverb of choice, meaning "as any fool can plainly see."

An example of a sentence adverb modifying a sentence is: Unfortunately, when I got to the supermarket it had run out of the vegetable I like.

That is to say, the meaning of a sentence could be signaled--and thereby validated--by the use of a sentence adverb such as moreover, indeed , or however .

Their functions as word sentence responses to yes-no questions are taken up by sentence adverbs, single adverbs that are sentence modifiers and also used as word sentences.

An example of a sentence adverb modifying a clause within a sentence is: I liked the red car in the forecourt, but unfortunately, when I got to the dealer it was already sold.

Elsewhere, for example in his comments on "black English," on "chair, chairperson," on "split infinitive" and on "hopefully" as a "sentence adverb," his tolerance of change seems both reasoned and admirable.

No; the sentence adverb, frankly, was added in the movie by the screenwriter Sidney Howard, just as the Watergate "Follow the money" was created in William Goldman's script for "All the President's Men."

The American Heritage Dictionary of the English Language warns that "writers who use hopefully as a sentence adverb should be aware that the usage is unacceptable to many critics, include a large majority [73%] of its usage panel".

Anyone who reads a language column is as sensitive to the noise of hopefully used as a "sentence adverb," as my dictionary puts it, as he or she is to the grating sound of "lay" used as an intransitive verb.

Like many other adverbs, such as frankly, happily, honestly and sadly, hopefully can be used as a "sentence adverb" indicating the writer's view of events - "hopefully, we will reach the summit" - or as a "manner adverb" modifying a verb - "we set off hopefully for the summit".