Numbers. Old Celtic and Marathi (Sanskrit derived spoken today by > 70 million people.) http://www.omniglot.com/ pic.twitter.com/CdkVdthSk1
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I found Latin/German/Greek/French grammar far simpler than English grammar which a ball of borrowed spaghetti...
Marathi also has the interesting concept of exclusive and inclusive "we" which doesn't exist for example in English.
Ditto w.r.t. clusivity in Irish...
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