In South Asia you often hear people end sentences with “isn’t it?” in contexts where traditional English would require “doesn’t it,” “won’t it,” “aren’t you,” and related expressions. In Britain and among American Indians, among others, this “invariant isn’t” is reduced to “innit,” and may be used even more broadly as a general emphatic exclamation at the end of almost any statement.
This interesting pattern is liable to puzzle, amuse, or annoy those who aren’t used to it, isn’t it?
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