Ever Think Your English is Good? Try Understand this

Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo.

well, that's 7 buffalo. Confusing? try this :D

James while John had had had had had had had had had had had a better effect on the teacher

Or this?

That that is is that that is not is not is that it it is

If you think i am writing crap, think again. Every single phrases above is legitimate statements, with proper noun, grammar and verb order.

In the case of James and John, it was even an test question which was given to the students in 1947

Read more at http://en.wikipedia.org/wiki/James_while_John_had_had_had_had_had_had_had_had_had_had_had_a_better_effect_on_the_teacher

http://en.wikipedia.org/wiki/Buffalo_buffalo_Buffalo_buffalo_buffalo_buffalo_Buffalo_buffalo

http://en.wikipedia.org/wiki/That_that_is_is_that_that_is_not_is_not_is_that_it_it_is

And yes, they are working links, not any 404 links.