Think Enlish is tough?
The Economist has an article about how languages can be said to be, comparatively speaking, more or less complex. The grand prize for most complex language goes to one in the Amazon:
With all that in mind, which is the hardest language? On balance The Economist would go for Tuyuca, of the eastern Amazon. It has a sound system with simple consonants and a few nasal vowels, so is not as hard to speak as Ubykh or !Xóõ….