Pane (or window-pane) = a sheet of glass used in a window: ‘The cracked panes will have to be replaced.’
Glasses (= spectacles) is a plural noun: ‘I wear glasses just for reading.’ ‘Have you seen my glasses?’
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However – English editing.
An adverb with two main uses:  To modify an adjective or another adverb: We cannot afford to postpone necessary actions, however difficult, in the future.  As a sentence adverbial or conjunction: There was, however, one important difference. This is the traditional way to use the word, enclosed between commas, as here. It can […]
Grammar & Punctuation – Either … or… . English editing.
When these two conjunctions are used as a pair, the two expressions that are linked should be of the same grammatical status:  Two words: Neither of us feels compelled to get wed on either moral or religious grounds.  Two phrases: The money will help fund a resources library and make learning units available […]
Grammar & Punctuation – adverbial clause – English editing.
In COMPLEX SENTENCES adverbial clauses provide information about:  CONCESSION: Clare has seen it, although she probably hasn’t had time to read it fully.  CONDITION: If you see a stranger acting suspiciously outside your home or your neighbour’s call the police.  MANNER: I called him as usual, and he answered with his usual […]