How to use "sewing" in a sentence

Sentences

She finally managed to earn a little money sewing shirts, but she was unable to send money regularly to the Thenardiers.

Fantine earned less and less money from her sewing, and the Thenardiers demanded more and more money to look after Cosette

She rarely answered questions and spent a lot of her time sewing, hut her favourite activity seemed to be catching flies, which she always released unharmed after examining them carefully.

I could, of course, choose sewing or drawing, but my hobby is Human Nature

'I know for sure she wants an electric motor for her sewing machine.'