Method and Conclusion. See here.
Results. A ratings system was designed in terms of how difficult it would be for an English-language speaker to learn the language. In the case of English, English was judged according to how hard it would be for a non-English speaker to learn the language. Speaking, reading and writing were all considered.
Ratings: Languages are rated 1-6, easiest to hardest. 1 = easiest, 2 = moderately easy to average, 3 = average to moderately difficult, 4 = very difficult, 5 = extremely difficult, 6 = most difficult of all. Ratings are impressionistic.
Time needed. Time needed for an English language speaker to learn the language “reasonably well”: Level 1 languages = 3 months-1 year. Level 2 languages = 6 months-1 year. Level 3 languages = 1-2 years. Level 4 languages = 2 years. Level 5 languages = 3-4 years, but some may take longer. Level 6 languages = more than 4 years.
This post will look at the Swahili language in terms of how difficult it would be for an English speaker to learn it.
For unknown reasons, Swahili is generally considered to be an easy language to learn. The US military ranks it 1, with the easiest of all languages to learn. This seems to be the typical perception. Why Swahili is so easy to learn, I am not sure. It’s a trade language, and trade languages are often fairly easy to learn. There’s also a lot of controversy about whether Swahili can be considered a creole, but that has not been proven. For the moment, the reasons why Swahili is so easy to learn will have to remain mysterious.
On the down side, Swahili has many noun classes, but they have the benefit of being more or less logical.
Swahili gets a 2 rating, moderately easy.