Is 'of' really optional? (of -
optional, you can leave it out)
Can you give me other similar examples where 'of' is optional? I can't think of any. I've always thought it's mandatory.
There is a standard English expression a minute's/ a few minutes peace.
"I need a few minutes peace before I set off on my journey"
"Please, just give me a few minutes peace"
Of course you can insert 'of' in the above, but this expression is frequently used without.