What is the population of your country?

Hi,

Can I answer of this question
What is the population of your country?
The population of country is over 2 million inhabitants.
It is over 2 million inhabitants.

The second answer sounds just fine, but the first isn’t quite right. You could say ¨The population of the country is over 2 million inhabitants¨ or ¨The country’s population is over 2 million inhabitants.¨

over two million
more than two million
in excess of two million
greater than two million
higher than two million

are all fine on their own, as an answer.

You can add “It’s” or “it is” before all those phrases if you want to and/or “inhabitants” after, but it’s not necessary in spoken English.

But if I want the complete answer of this question:What is the population of your country?

Because “what” and " the population of your country" are nominative and interchangeable, thus, I think the answer would be either:

Over 2 million inhabitants is the population of my country
Or: The population of my country is over 2 million inhabitants.

You are correct on a phrasal level. But if you insist on consciously applying grammatical notions to all of your output, you will have to understand discoursal level grammar to sound natural.

The trouble is: no one completely grasps discoursal level grammar.

My advice: listen to Steve.

Thanks very much. What do you mean " listen to Steve."

In my inquiry above is similar for this:
As long as “to be” doesn’t have an object, “What” and “your name” are nominative and interchangeable.
What is your name?
Something is my name.
My name is Something.
How tall are you?
I am Something .
Something am I.

Language Fundamentals - YouTube

http://extra.shu.ac.uk/daol/index.html

The population of my country is 190.000.000 of in habitants. (Brazil)