How to say "Little did I/he/she/they know"?


I found a few examples at ALC, but still not sure about the best way to say
it.




For example, the most natural way of translating this expression

> One day Jennifer tidied up her son's bedroom. Little did she know her son
> would be so mad when he found that out.

can be rephrased simply as follows:

> One day Jennifer tidied up her son's bedroom. She did not know her son would
> be so mad when he found that out.

Basically it is a fancier way of saying ～ことをまったく知らなかった where ～ is the
statement that follows the expression.

I find the most natural way of translating this is to write
彼女は（息子が怒り出す）とは思わなかった, to show that the person was kind of caught off guard by
what happened.




For example, the most natural way of translating this expression

> One day Jennifer tidied up her son's bedroom. Little did she know her son
> would be so mad when he found that out.

can be rephrased simply as follows:

> One day Jennifer tidied up her son's bedroom. She did not know her son would
> be so mad when he found that out.

Basically it is a fancier way of saying ～ことをまったく知らなかった where ～ is the
statement that follows the expression.

I find the most natural way of translating this is to write
彼女は（息子が怒り出す）とは思わなかった, to show that the person was kind of caught off guard by
what happened.

