I think that she thinks that I think she is dumb Just trying have some fun with Japanese grammar, but the sentence in the title has me stumped. I just don't understand Japanese particles enough to even know where to begin. Here is my best attempt at something resembling this sentence, but its gotta be wrong, so please help understand how to construct this sentence in the best way. > I think that she thinks that I think she is dumb > (LOL, there is just no way...)

How about...

I think she is dumb.

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She thinks that I think she is dumb.

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I think that she thinks that I think she is dumb.

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X thinks that I think that she thinks that I think she is dumb.
X
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Y thinks that X thinks that I think that she thinks that I think she is dumb.
XY
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... and it can go on and on...