If you did not get the job, I would have gone to live with my brother.
in grammar form
"Don't it" is not proper grammar. The correct form is "doesn't it".
Grammer
The possessive form for the noun brother is brother's.Example: My brother's daughter is my niece.
The singular possessive form for brother is brother's; for example:I drive my brother's car.
Grammatically
The possessive form of the noun brother is brother's.The possessive form of the coat of my brother is my brother's coat.
You use English grammar to form sentences and communicate using the English language.
tense form
The form brother is the singular noun.The plural form is brothers.
Kinetic energy. What form of grammar do you possess?
The correct grammar is "How are your parents?" This is because "parents" is a plural noun, so the verb "are" should also be in the plural form.