Learn English – “How much” questions without auxiliary verb

questions

Are all these questions and their answers possible?

a) How much costs this book? -> Ten dollars costs this book. (Ten dollars as a singular subject, the price).

b) How much costs this book? -> Ten dollars cost this book. (Ten dollars as a plural subject).

c) How much does it cost this book? -> This book costs ten dollars. (Ten dollars as an object)

d) How much does this book cost? -> This book costs ten dollars. (Same as the one above).

Best Answer

Cost = to require the payment of (in this context)

This book costs ten dollars. = This book requires the payment of ten dollars. The understanding of the exact meaning of the word 'cost' shall help us figure out its proper usage.

A question to enquire about its cost would begin with 'How much'. When a sentence begins with 'How much', an ESL student may proceed from the affirmative sentence, "This book costs ten dollars" and frame the question as follows:

"How much this book costs?".

But an interrogative sentence will have to be re-written as

"How much does this book cost?"

Why? Here's the rule: How much + auxiliary (do/does/did/will) + subject/pronoun + infinitive

Framing a question this way may be unique to English, which may pose a challenge to a foreign student.

Your other forms, both questions and answers, are therefore incorrect, grammatically.

However, "How much does it cost... this book?" may be okay in the informal/spoken language.

I tried!