'Twouldn't
A (most likey) legit word, along with 'twould've, that was popular in the Shakespearean time. Means: it would not. Just fancier. And more legit.
'Twouldn't be so hard for Mady to save money if she just believed in Jasmine's vocabulary. 'Twould've saved her a lot of time and money she spent owing Jasmine a milkshake...