الفرق بين a three-day holiday و three days' holiday بطريقة جميلة

[Essam ABDOU]

Dear Mr.H0ris0n,

Exchanging and sharing our knowledge and experience is one of the aims of this forum. We do learn from each other. I feel very happy when I give a piece of information on the forum, but my greatest fear is that the receiver would think of it as interference or FAZLAKA.

"وما اُتيتم من العلم إلا قليل"

I have an idea of starting a (fixed) page entitled:

I learnt/learned that only today.

It should be about anything related to the English language (not only the syllabus).
The presenter of the piece of information has to mention the source.

This is my first participation on that page (if we can make it a fixed page):

Only yesterday I found out that we can use BEFORE (not only WHEN) after HARDLY and SCARCELY when we deal with PAST PERFECT, whether hardly or scarcely come at the beginning of the sentence [the inversion rule] or not.

e.g. The concert had hardly begun before all the lights went out.

The source of information is
Cambridge`s Advanced Grammar in Use by Martin Hewings, Unit 94 C, page 188.

Best Regards!