Utilisation de formes contractées

Bonjour tout le Monde !!!!

Voilà j'ai un Dm à rendre , je l'ai terminé mais il ne me reste plus qu'une question que je n'arrive vraiment pas à résoudre donc sa m'aiderait beaucoup un petit coup de pouce ^^ Merçi d'avance :

Ma question est:
Quand le narrateur parle, elle n'utilise jamais de formes contractés . Pourquoi pas ?


Voilà un extrait du texte:

He did not work on the painting of me every day. He had the concert to paint as well, with or without van Ruijven and his women. He painted around them when they were not there, or asked me to take the place of one of the women- the girl sitting at the harpsichord, the woman standing next to it singing from a sheet of paper. I did not wear their clothes. He simply wanted a body there. Sometimes the two women came without Van Ruijven, and that was when he worked best. Van Ruijven himself was a difficult model. I could hear him when I was working in the attic. He could not sit still, and wanted to talk and play his lute. My master was patient with him, as he would be with a child, but sometimes I could hear a tone creep into his voice and knew that he would go out that night to the tavern, returning with eyes like glittering spoons.
I sat for him for the other painting three or four times a week, for an hour or two each time. It was the part of the week I liked best, with his eyes on only me for those hours. I did not mind that it was not an easy pose to hold, that looking sideways for long periods of time gave me headaches. I did not mind when sometimes he had me move my head again and again so that the yellow cloth swung around, so that he could paint me looking as if I had just turned to face him. I did whatever he asked of me...

Voila si vous pourriez m'aider se serait sympa =) Merçi

Alors la question exacte et en anglais est:

When the narrator speaks, she never uses contracted forms. Why not ?

Voila =)