It would entirely depend on the specific word's origin. And the vast majority of the nouns ending in u, end in a diphthong (two or more vowels), and the most correct answer in that case would be "add s".
Nouns ending in 'sh', 'ch', 'x', and 'z' form the plural by adding 'es' to the end of the word. Examples:
Examples of nouns that end with S are:biasbusJonasvirusExamples of nouns that end with X are: foxSiouxboxhoaxExamples of nouns ending with Z are: quizLa Paz (Bolivia)waltzjazzExamples of nouns ending with CH are: churchMarchporchbleachExamples of nouns ending with SS are: classbossmassmossExamples of nouns ending with SH are: garnishhashmarshbrush
The word Koch is a proper noun, a person's name. A proper noun is always capitalized.The plural for nouns ending in 'ch' is formed by adding 'es' to the end of the word. The plural form is the Koches.
Some plural nouns that don't end in S:alumniamoebaebacteriacactichildrencriteriadatafeetformulaegeesemediamenmicemooseoctopioxenpeoplephenomenasheepteeth
The plural for Mrs. Gonzales is the two Mrs. Gonzaleses; the plural possessive is the two Mrs. Gonzaleses'.Both common and proper nouns ending in ch, sh, s, x, and z add -es to the end of the word to form the plural.Plural noun forms that already end in -s add only an apostrophe after the existing -s to form the plural.
A plural noun is a word for more than one person, place, or thing. Here are some rules to make singular nouns into plural nouns:To make most nouns plural, add an s to the end of the word. 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.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 dayis 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.
Examples of singular nouns ending in 'ch' are:archbatchbeachbirchbleachcatchchurchclutchcouchcrutchditchDutchfinchgulchhitchhunchitchleechlunchmarchmatchnotchostrichperchpitchporchranchspeechwitchZurich
The nouns ending in ch, sh, s, x, and z add -es to the end of the word to form the plural. Only some nouns ending in o use -es to form the plural.Examples:church, churcheswish, wishesdress, dressesbox, boxeswaltz, waltzespotato, potatoeshero, heroes
Examples of nouns that end with S are:biasbusJonasvirusExamples of nouns that end with X are: foxSiouxboxhoaxExamples of nouns ending with Z are: quizLa Paz (Bolivia)waltzjazzExamples of nouns ending with CH are: churchMarchporchbleachExamples of nouns ending with SS are: classbossmassmossExamples of nouns ending with SH are: garnishhashmarshbrush
The word Koch is a proper noun, a person's name. A proper noun is always capitalized.The plural for nouns ending in 'ch' is formed by adding 'es' to the end of the word. The plural form is the Koches.
The plural form of "stomach" is "stomachs." In English, nouns that end in "ch," "s," "sh," "x," or "z" typically form their plurals by adding "es." However, "stomach" is an exception to this rule, and its plural form is created simply by adding an "s."
For singular nouns ending in -ch, add an apostrophe and an s ('s) to form the possessive. For example, "the coach's whistle." For plural nouns ending in -ch, add only an apostrophe (') after the s, like "the horses' stable."
The plural of bunch is bunches.The rule for making singular nouns ending with -sh, -ch, -s, -x or -z into plurals is to add -es.Examples:wish, wisheschurch, churchesbus, busesfox, foxesbuzz, buzzes
To make singular nouns to plural: 1. Add s to the end of the noun Examples: three red roses five fingers 2. Add es to the nouns ending in ch, sh, s, or x torches rashes grasses foxes
You typically add "es" to a verb in the third person singular form (he, she, it) in the present tense. For example, "she watches." This rule applies to most regular verbs, but irregular verbs may follow different patterns.
The plural form is speeches. Nouns ending with s, z, sh, ch, and x take 'es' to become plural. Example: boss, bosses waltz, waltzes wish, wishes latch, latches box, boxes
There are no specific "30 rules" for forming plural nouns in English. Plural nouns are generally formed by adding "-s" to the end of the singular form, but there are exceptions like changing the spelling (e.g., "man" to "men") or using irregular forms (e.g., "child" to "children"). It's best to learn plural formations through practice and exposure to the language.
The general rule for forming the plural of singular nouns is to add -s to the end of the word. However, there are exceptions such as nouns that end in -s, -x, -z, -ch, or -sh, where you would add -es to form the plural. For irregular nouns, the plural form may change entirely (e.g., child becomes children).