Des sons aux formes (2)
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D'autre part, quand on entend /ə/, cela peut notamment correspondre à : 
        l'article a (a book) ;
        are (My teachers are French.) ;
        at devant /t/ ou /d/ (at dinner) ; 
        of devant /f/ ou /v/ (I'm fond of vegetables.)
        have devant /f/ ou /v/ (We've visited them twice.).

De même, quand on entend /d/, cela peut notamment correspondre à : 
        had ( I had been ill for two days when I decided to call the doctor.) ; 
        would (If I could, I would go to England more often.).