No, Atlantis is a singular noun (a proper noun). It is the name of a place; the word place is singular.
The plural form of the singular noun notch is notches.
Yes, and they are exactly the same. Singular = Singular Plural = Plural
Atlantis is spelled A-T-L-A-N-T-I-S.
Examples of possessive case plural nouns are:apples'men'spoliticians'children'sExample sentences:The apples' price was too good to pass up.The men's surprise party for their wives was a big success.I'm glad the election is over, I get so tired of politicians' rhetoric.The children's lunch is ready.
's is a contraction of the verb "is" or "has" and is used with both singular and plural nouns. For example, "John's cat" (singular) and "The cats' toys" (plural).
Successes is the plural form of the noun success.
Children or kids
The word "sew" is a verb, not a noun. There is no plural for sew.
The plural form of the singular noun notch is notches.
The irregular plural form for the noun knife is knives.
Buffalos
Shelves
Mitochondria
cargoes or cargos
sheep, it doesn't change.
The plural of activity of activities.
Crises -- pronounced krahy- - seez