Test your understanding with this quick quiz.ġ. To show possession, we usually add 's to the plural form of these nouns: singular noun Some nouns have irregular plural forms without s (man → men). R Hydraulic Radius, (ft) S Channel Slope, (ft/ft) Under the assumption of uniform flow conditions the bottom slope is the same as the slope of the energy grade line and the water surface slope. When a name ends in s, we usually treat it like any other singular noun, and add 's:īut it is possible (especially with older, classical names) to just add the apostrophe ': Manning’s Equation: Where: Q Flow Rate, (ft 3 /s) v Velocity, (ft/s) A Flow Area, (ft 2) n Manning’s Roughness Coefficient. S&S Home Center Making It Easy to Buy Local In 2016, Ace Hardware was awarded J.D. We very often use possessive 's with names: Whether it’s Paint Supplies, Electrical Fittings, Plumbing Fixtures, Pipe Glue, Power Tools, Custom Windows, New Doorknobs, Nuts & Bolts, Pool Supplies, Grilling Accessories, Bagged Goods, Sheetrock, Roofing, or Lumber.
The following phrases have the same meaning, but #2 is more usual and natural: Although we can use of to show possession, it is more usual to use possessive 's.
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