Currency money or book money, which are fiat money. Currency money Currency money is money in full circulation that takes its value from the precious metal it contains, that is, its market value is (almost) the value of the metal it contains (apart from the Seigniorage or the minters' profit), though this is always overcompensated for in coins and banknotes from a country undergoing debasement. Currency money is usually made of silver or gold, but in very rare cases plated metal and even copper may be used. Currency money is commodity money, as opposed to coins whose metal value is less than
Shall and will it is nearly absent from ordinary speech. The legal reference "Words and Phrases" dedicates 76 pages to summarizing hundreds of lawsuits that centered around the meaning of the word shall. When referencing a legal or technical requirement, "Words and Phrases" instead favors "must" while reserving "should" for recommendations. As noted above, "should" and "would" originated as the preterite (past tense) forms of "shall" and "will". In some of their uses they can still be identified as past (or conditional) forms of those verbs, but they have also developed some specific meanings of their own. The main use of "should" in