English speakers, as sloppy as they often are, are wed to precision.
Complete sentences in English have a subject, a verb, and (generally)
a predicate -- implied if not spoken. Perhaps a language in which this
was not true would be difficult for us (I, strangely enough, can't think
of one off the top of my head).
How about a language with no representations of past, present, and future?
Or a language with no distinction between declarative, interrogative,
imperative, and subjunctive (or some subset thereof)?
That said, I think that English speakers are among the least constrained
on the planet, since we steal words from so many different languages.
We do, however, seem to have problems with melodic and clicking
Kennita Watson | The bond that links your true family is not one of blood,
firstname.lastname@example.org| but of respect and joy in each other's life. Rarely do
| members of the same family grow up under the same roof.
| -- Richard Bach, _Illusions_