clean

English as a Second Language English Vocabulary, Grammar and Idioms
1
  1. “She rinsed the glass clean.”
    In this sentence is the word ‘clean’ an adjective or an adverb?
    My friend says it is adjective but I claim it is an adverb.
    Am I correct?
  2. Open your mouth wide/widely.
    Please correct the the sentence #2.
    Thanks.
2
  1. oxfordlearnersdictionaries.c … sh/clean_1
  2. Open your mouth wide.
3

Beeesneees,

  1. The train is running slow(adj).
  2. The train is running slowly(adv).
    Is ‘slow’ in the #1 sentence an adjective or an adverb?
    Please explain a bit so that I understand the nuance of the grammar.
    Thanks.
4

Beeesneees,
Please answer the above query.
Thanks

5

Anglophile,
Please answer the above query.
Thanks

6
  1. The train is running slow (adj). (but functioning as adverb)
  2. The train is running slowly (adv).

In grammar many (seemingly) adjectives play the role of adverbs, too. Words like slow, different, sweet, dear, clean, wide etc may be cited as examples. Perhaps when you say ‘Open your mouth wide’, you mean that the mouth should be opened in such a way that it becomes wide enough or that you expect the mouth to be wide open.