The plural form of the noun down is downs. This would include uses such as US football plays, or declines, but only rarely the use that means "feathers" (which is a mass noun).
ups and downs
The plural form of the noun orange is oranges.The plural possessive form is oranges'.Example: The oranges' bag split and the oranges rolled down the steps.
The plural form of the noun torches. The plural possessive form is torches'.Example: After dark, the torches' lights of many skiers twinkled down the mountain.
The plural form for the noun ball is balls. The plural possessive form is balls'.Example: The balls' container broke open and all of the balls bounced down the stairs.
Was is used in singular, for example: She was walking down the street. Were is used in plural, for example: They were walking down the street
The possessive form of the plural noun calendars is calendars'.example: The calendars' prices come down in January.
Alveolii(plural) Alviolus(singular)
The plural of taco is tacos.When something is plural, it means more than one.An example sentence is: The seagulls swooped down and snatched our tacos.
The plural form of the noun child is children.The plural possessive form is children's.example: The children's coats all hung in a row.The plural form of the noun friend is friends.The plural possessive form is friends'.example: It was nice to see our friends' kids at the picnic.The plural form of the noun woman is women.The plural possessive form is women's.example: The women's locker room is down that corridor.
Is the phrase "down a ways" proper english? wherein "a" suggests singularity, yet "ways" suggests plural.
The plural form of the noun fisherman is fishermen.The plural possessive form is fishermen's.Example: The fishermen's boats bobbed up and down on the waves.
It is incorrect to say 'waters were falling down' because water is an uncountable noun. It does not have a plural form. So, the sentence will be 'water was falling down.'