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What are these forms: かけちゃお, つないじゃお?
Is this って equivalent to 「と」?

From the Ponyo theme song:

ペータペタ ピョーンピョン 
足っていいな かけちゃお! 

Why is 足 given the て conjugation, as if it's a verb? I usually only see that for 足る, which has nothing to do with feet. What's going on here grammatically?

marked as duplicate by cypher, Zhen Lin, Flaw, Chris, jogloran Dec 8 '12 at 13:36

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This isn't a verb -- it's the usual quotative って. The meaning is hence something like "These things called feet are neat, aren't they. Let's have a run!"

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