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The plural of 30 is 30s or 30's. It is the same whether it refers to years or ages (or other measurements, such as degrees of temperature). Sometimes it is better to spell it out as a word: "She is in her thirties."
When it refers to the 1930s but you are not including the 19, you should add an apostrophe before the 3: The Great Depression of the '30s.
It does not matter whether or not you use an apostrophe before the plural ending -s; both are correct: 30s or 30's
What else can I help you with?
What is correct - 30 liters of petrol is filled or 30 liters of petrol are filled?
30 litres of petrol are filled because you're talking about more than one litre (plural).
What is the plural form of SHE IS?
The plural of "she" is "they", so the plural of "she had" is "they had".
What are the 30 rules in forming plural nouns?
A plural noun is a word for two or more people, places, or things. Here are some rules to make singular nouns into plural nouns:To make most nouns plural, add an s or es to the end of the word. These are called regular plurals (or regular nouns). Example: the plural of neighbor is neighbors, the plural of flower is flowers.Nouns ending in s, z, ch, sh, or x, add es to the end of the word to make it plural. The plural of dish is dishes.Some nouns ending with o are pluralized by adding and es to the end of the word. The plural of tomato is tomatoes.Most nouns ending with o are pluralized by adding s to the end of the word. The plural of photo is photos.Nouns that form their plural in some other way are called irregular plural (or irregular nouns). Example: the plural of child is children, the plural of foot is feet.When a noun ends in a y, change the y at the end of the word to an ies. The plural of berry is berries.Some nouns ending with y, preceded by a vowel, are pluralized by just adding s to the end of the word. The plural of day is days.Nouns ending with f or fe, change to f or the fe to ves to form the plural. The plural of life is lives.Nouns ending with ff are usually pluralized by just adding an s to the end of the word. The plural of cuff is cuffs.Some nouns change the vowel sound to become plural. The plural of man is men, the plural of tooth is teeth.Some Old English plurals are still in use. The plural of child is children, the plural of ox is oxen.Some nouns that end with is, the ending is changed to es to form the plural. The plural of crisis is crises.Some nouns that end with um, the um is replaced with an a. The plural for datum is data, the plural for medium is media.Some nouns that end with on, the on is replaced with an a. The plural of phenomenon is phenomena.Some nouns that end is a, change the a at the end of the word to ae. The plural of larva is larvae.Some nouns that end in ex or ix, the plural is formed by changing the x to ces. The plural of index is indeces, the plural of matrix is matrices.Some nouns that end in us, the plural is formed by changing the us to i. The plural of cactus is cacti, the plural of radius is radii.Nouns ending in eau, the plural is formed by adding x to the end of the word. The plural of bureau is bureaux.There are any number of other variations such as the plural of tempo is tempi; the plural of cherub is cherubim; the plural of person is people. But language evolves over time or we would still be speaking like Shakespeare.Even as I type these rules, some are officially amended. For example, the plural forms indeces and indexes are both being accepted as correct plurals for index and the plural forms; bureaux and bureaus are both being accepted as correct plurals for bureau, as are many other irregular plurals being found in standard dictionaries with modernized plural options.
What is the plural of 'this' and 'that'?
The plural of 'this' is 'these' and the plural of 'that' is 'those'.
What is the plural of isthmi?
Isthmi is plural. There are actually two plural forms. I will list them from singular to plural. Isthmus - Singular Isthmi - Plural Isthmuses - Plural
What is the plural or plural possessive rose?
The plural of rose is roses. The plural possessive is roses'.
Is applied plural?
applied is does not have a plural but is apply it does have a plural.
What is the plural for knights?
Knights is a plural. It is the plural for knight.
What is the plural of can?
The plural form of can is cans.
What is the plural of attic?
The plural is a regular plural, attics.
What is the plural of bunch ant batch day chimney tomato umbrella donkey sky foot?
The plural of 'bunch' is bunches.The plural of 'ant' is ants.The plural of 'batch' is batches.The plural of 'day' is days.The plural of 'chimney' is chimneys.The plural of 'tomato' is tomatoes.The plural of 'umbrella' is umbrellas.The plural of 'donkey' is donkeys.The plural of 'sky' is skies.The plural of 'foot' is feet.The plural of 'show' is shows.
What is the plural and plural possessive to loss?
The plural for the noun loss is losses; the plural possessive is losses'.
