two verbs in a sentence?

[Unregistered]

Hi,
I came across a sentence while I was reading an newspaper article. Can you please tell me what's the function of the verb "change" in this sentence and why it is in present tense instead of past tense. Also, in similar cases like this, should the second verb always be in the past tense.

This is the sentence that confuses me: "I hated to see it change"

Why is it not "changed" or "changes"?

i'd really appreciate it if you can clear this up for me.

 

[Hi_there_Carl]

In the sentence "I hated to see it change" the word "change" is a noun not a verb as in "the act, process, or result of changing" ;-)