The plural possessive form is colonists'.
The possessive form for the noun colonist is colonist's.Example: A colonist's day was filled with hard work.
The possessive form of the noun historian is historian's.Example: The historian's presentation was very interesting.
The possessive form of the singular noun yesterday is yesterday's.Example: There was an article about that in yesterday's newspaper.
Yes, the form Poland's is the possessive form as indicated by the apostrophe s ('s). Example: Poland's Wieliczka Salt Mine near Warsaw is a UNESCO World Heritage Site.
The plural form for the noun spy is spies.The plural possessive form is spies'.
spies
Technically, the plural is espionages, but you're more likely (and it's better writing) to say "he was convicted of several acts of espionage" rather than "he was convicted of several espionages".
The singular possessive form is heart's; the plural possessive form is hearts'.
The possessive form is subsidiary's.
The possessive form of "synopsis" is "synopsis's" or "synopsis'."
No, it is singular, the possessive form of it is its. The plural form of it is they or them, and the possessive form is their.To answer the question directly: there is no such word as ITS'.
The singular possessive is Richard's; the plural possessive is Richards'.
The possessive form is lawyer's.
The possessive form of "he" is "his": He did his homework after dinner.
The possessive form is posse's.
The possessive form is battleship's.