The plural form of the noun ability is abilities.
abilities
Yes, the pronoun 'their' is a possessive adjective, a word that describes a noun such as 'ability' as belonging to a plural or multiple antecedent noun. Example:We test our applicants on their ability to perform the job.
Yes, feet's is a word. It's the possessive form of feet, which is the plural form of foot. Here's an example sentence: The feet's ability to get a grip on a soapy floor is questionable. Which ability? The feet's ability. The ability of the feet. It's the feet's ability that we are talking about here.
Yes, the noun 'understanding' is a count noun as a word for an informal agreement.The plural form is understandings.The noun 'understanding' is an uncountable noun as a word for the ability to comprehend or sympathy for others' feelings.This use has no plural form.
The possessive form for the plural noun charges is charges'.Examples:The charges' total exceeded my ability to pay.She always took care with her charges' appearance and behavior.
The human phenomena: the Human ability to err!, add to that their vanity, and you have an explosive mixture.Something made by Humans.Additional answerPhenomena is a plural word, the singular of which is phenomenon. So I've changed your question to allow for the use of the plural.
The plural form of the noun 'bilingual' (a person fluent in two languages) is bilinguals.The word 'bilingual' is also an adjective, used to describe a noun (a bilingual student).The noun bilingualism is the practice or ability to speak two languages fluently.
The noun 'give' is an uncountable noun, it has no plural form.The noun 'give' is a word for the ability of something to bend or stretch. Either something has 'give' or it does not.
That is the proper spelling of "sense" (reason, or a perceptive ability). The homophones (sound-alike words) are: CENTS - hundredths of a dollar SCENTS - smells or odors
A singular noun is a word for one person, place, or thing. A 'special noun' is called an abstract noun, a word for something that can't be experienced by any of the five senses; they can't be seen, heard, smelled, tasted, or touched. Abstract nouns are words for things that are known, understood, believed, or felt emotionally. Some abstract nouns are countable (have a singular and a plural form) and some are not. Examples of singular abstract nouns: ability (plural, abilities)belief (plural, beliefs)courage (uncountable)danger (plural, dangers)education (uncountable)faith (plural, faiths)guarantee (plural, guarantees)happiness (uncountable)ignorance (uncountable)joke (plural, jokes)knowledge (uncountable)liberty (plural, liberties)memory (plural, memories)nonsense (uncountable)opinion (plural, opinions)promise (plural, promises)quest (plural, quests)reason (plural, reasons)sincerity (uncountable)trouble (plural, troubles)urge (plural, urges)victory (plural, victories)welcome (plural, welcomes)year (plural, years)zeal (uncountable)Note: There are also plural, uncountable, abstract nouns that have no singular form; for example, news, means, earnings, regards, etc.
Many universities use the ability to write clear and correct English as one of their admissions criteria. (Criteria is the plural form of criterion!)