Groot: I am Groot.

Peter Quill: Well, that's just as fascinating as the first 89 times you told me that. What is wrong with Giving Tree, here?

Rocket: Well, he don't know talking good like me and you. So his vocabulistics is limited to "I" and "am" and "Groot." Exclusively in that order.

Peter Quill: I tell you what, that's gonna wear real thin, real fast.