The possessive form for the plural noun teeth is teeth's.
Example: The teeth's luster shows well in the photograph.
Example: Her teeth's whiteness is the result of a special treatment.
Goddess', because the word 'goddess' ends in 's'. (e.g. The goddess' name was Venus.)
According to this site: grammargoddess.com
both forms:
Goddess' (modern usage)
and
Goddess's (traditional singular rule)
are correct.
There are two accepted forms for possessive singular nouns ending in s:
Add an apostrophe (') after the existing s at the end of the word: analysis'
Add an apostrophe s ('s) after the existing s at the end of the word: analysis's
Examples:
I've written a report on my analysis' findings.
I've written a report on my analysis's findings.
There are two types of pronouns that show possession.
Possessive pronouns are words that take the place of a noun that belongs to someone or something.
They are: mine, yours, hers, his, its, ours, theirs.
Possessive adjectives are words that describe a noun as belonging to someone or something. Possessive adjectives are usually placed just before the noun they describe.
They are: my, your, his, her, its, our, their.
The pronoun "I" is the first person (the person speaking) singular (one person) personal pronoun.
The corresponding first person singular possessive pronoun is mine.
The corresponding first person singular possessive adjective is my.
Examples:
I live on this street. The house on the corner is mine.
I live on this street. My house is on the corner.
The possessive form of the word "goddess" is "goddess's" or "goddess'".
The singular possessive form is word's; the plural possessive form is words'.
The possessive form for the singular noun ship is ship's.
Example: The ship's crew was given shore leave for the day.
The possessive form of the plural noun stories is stories'.
Example: These stories' author has become very popular.
Teeths'
The possessive form of "goddess" is "goddess's."
The plural possessive form of "goddess" is "goddesses'."
The possessive form of the word "dictionary" is "dictionary's."
The singular possessive form is word's, for example the word's definition.
possessive form of the word glass: glass'
possessive form of the word Congress: Congress'
possessive form for the word holders: holders'
possessive form of the word Cathi: Cathi's
The possessive form of the word fairy is fairy's.
the possessive form of the word Cathie: Cathie's
The possessive form is Lindbergh's.
The possessive form is weaver's.