CERCEMaGGIORE

    ARTICLES A OR AN   When do we use  a  and when do we use  an ? In speaking, we use  a   /ə/  before a consonant sound: a car a house a big truck a wheel a grey day Warning: Some words that begin with a vowel letter in writing have a consonant sound: /ə ju:ˈnaɪtɪd …/ /ə ju:niˈvɜ:sɪti/ /ə wʌn …/ a united group a university a one-year-old child We use  an   /ən/  before a vowel sound: an apple an old shoe an orchestra an umbrella Warning: Some words that begin with a consonant letter in writing have a vowel sound: /ən aʊə(r) /  an hour/ən empi: θ ri : …/  an MP3 player A one year old baby. PRESENT SIMPLE FORM