In the last sentence aurais is conditional but in the notes you only talk about conjugating verbs in l'imparfait?

Hi Peggie, 

If you want to practise your conditional, here is the Kwiziq main page on the subject with lots of sub-pages -

https://progress.lawlessfrench.com/revision/glossary/verb-tense-mood/the-french-present-conditional-le-conditionnel-present

Hope this helps!