Hi, can someone please tell me why the word "change" in the sentence "i hated to see it change" a noun? Also, do the tenses in the sentence have to agree with each other? If so, why does the sentence “ As you might imagine, this did not make the judges the happiest people I’ve ever seen” not follow tense agreement? The underline verbs represent two different tenses. Under what condition can we use different tenses in the same sentence?