Sorry to go a bit off-topic, but I am replying to comments by a couple of people here who responded to my first comment, which also mentioned the Japanese language. I'll stress again, from direct experience, that Japanese is not a
tough language to learn (grammatically and verbally). Reading it is
the only thing that makes Japanese hard...using the Chinese
pictographic system (which the Japanese call "Kanji"), and two
supplemental systems, makes it very hard to learn. But the grammar,
as well as speaking it, is very easy.

Still, like other
oriental languages, is it not structured, grammatically, like any
Indo-European language. And it uses an honorific system...meaning
that the words and grammar are structured so that you can give more or
less honor to the person whom you are speaking to by what versions of
each word you use (using prefixes and suffixes, and variations).
Ironically, the longer the words and the sentences, the more honor you
are paying to the person you are speaking to. And pronunciation is an
exacting issue in Japanese. Two very similar words can mean VERY
different things...and can cause insult if misused (and native English
speakers are notorious for totally botching pronunciation and not
caring about it...in speaking to a Japanese person, that lousy
attitude could present a real problem).

Not true. English is the hardest to learn. But yes, French can be hard
to learn. I can say only hello and hi, how are you.

I find French an extremely hard. And I half to take it if I'm going to
have a horse farm!

There are different opinions for many people. I'm a 6th grader taking
french. It gets easy, but later it's gets harder depending how
educated you are. Reading French can sometimes get really tricky with
the accents and different grammar. But I'd say Japanese is the most
hardest language.
See, French has less letters in the alphabet
than English which somehow makes it a tiny bit easier to learn, for
some people. Japanese and Chinese have many symbols for calligraphy
and the teaching is strict. But don't worry about that. French gets
easier the more you study, and the more educated you are.
Take it from a 6th grader! XD

I'm not sure if it's a good idea to learn a language ONLY for that
reason...But well. Yes French is a complex language, even for native
speakers...But surely not as complex as learning Chinese or Japanese,
true.

I took five years of French between 8th grade and senior year of high
school. It is certainly not the hardest language. It IS, however, one of the
more grammatically-irregular languages, like English. And its
pronunciation can, for non-native speakers, be tough to master. But I
think you'll find languages such as Latin, Russian, or German harder
(primarily because they not only have verb conjugation, but also noun
declension in their grammatical structures). And while the oriental
languages are usually very easy to learn grammatically (and in their
pronunciation), Chinese and Japanese (the latter of which I also took
a few years of) are very hard to learn to READ. Chinese has a
pictographic writing system (and over 2,000 symbols). Not alphabetic
like the western languages. And Japanese not only uses the Chinese
characters, but supplements those with two more writing systems
(albeit short ones) over and above that!

Well theres different opions on this. For some people it can be very
hard for them to learn, and for others, it can be very easy. Though I
heard the hardest lauguange to learn is English..