§ 467. Extensions are adjuncts of adjectives, adverbs and adlinks in a sentence. They differ from complements and attributes in being usually modifiers of modifiers, or ter-tiaries, in the terminology of O. Jespersen.
1 Op. cit., p. 47.
2 Â. Ë. Êàóøàíñêàÿ and others, op. cit., p. 259,
Ë. Ñ. Áàðõóäàðîâ, Ä. À. Øòåëèíã, op. cit., p. 360, etc.
In a simple sentence extensions may be single words or combinations of words, including complexes.
Doreen's voice sounded too brisk and too loud. (Cusack).
Her little resolute face under its copper crown was suspiciously eager and aglow. (Galsworthy).
The creature's eyes were alight with a somber frenzy. (London).
Then he became aware of Abbey standing before the big open fire in the hall. (Cronin).
§ 468. W. Francis distinguishes between such 'adjective qualifiers' as very, quite, rather, pretty, mighty, somewhat, a bit, a little, so, too, more, most, less, least, enough, indeed, on the one hand, and such as exceedingly, enormously, etc., on the other, since the latter "are marked as adverbs by the adverb suffix -ly and can appear in positions regularly occupied by adverbs." 1
We do not think this distinction relevant when analysing extensions as a part of the sentence which covers different morphological classes of words. Besides, most of the 'adjective qualifiers' are connected with more than one part of speech, as W. Francis himself admits: "Since qualifiers also appear with adverbs, they are not exclusively adjective determiners" 2.