pronoun
BAD : She was always a such intelligent woman.
GOOD : She was always such an intelligent woman.
◆◆◆
Such always comes at the beginning of a noun phrase: 'It's such a good film that I'd like to see it again.'
pronoun
BAD : She was always a such intelligent woman.
GOOD : She was always such an intelligent woman.
◆◆◆
Such always comes at the beginning of a noun phrase: 'It's such a good film that I'd like to see it again.'
Longman Common Errors English vocabulary. Английский словарь распространенных ошибок Longman. 2012