The question actually uses both the singular and plural form. One colonist - the colonist's property. Two colonists - the colonists' properties.
Plural
The plural possessive form is colonists'.
That is the correct spelling of the noun "colonist" (a settler, plural colonists).
No, was is past tense. It is used for first and third person singular subjects.I was (first person singular)We were (first person plural)You were (second person singular and plural)He/She/It was (third person singular)They were (third person plural)
"do" (your-singular) "bhur" (your-plural)
No - Colonists is a plural noun.
The word settlements is a plural noun. The singular form is settlement.
practitioner is singular (plural practitioners)sofa is singular (plural sofas)satellite is singular (plural satellites)clips is plural (singular clip)dentist is singular (plural dentists)dollars is plural (singular dollar)article is singular (plural articles)magazines is plural (singular magazine)laminator is singular (laminators is plural)radios is plural (singular radio)
singular and plural
Singular: book / Plural: books Singular: cat / Plural: cats Singular: child / Plural: children Singular: foot / Plural: feet
The plural possessive form of "colonists" is "colonists'."
Are is plural. "Is" is singular. For example, "There is a glove on the chair". That is singular. "There are gloves on the chair". That is plural.
"Has" is singular, e.g. He has, she has. "Have" is plural, e.g. They have, we have. The exception is "I" - e.g. I have.
The word team is singular; the plural form is teams.
'These' is the plural form of 'this'.
Who may be singular or plural.
This is singular. These is the plural form.