没méi (= not)
没有 méi yǒu (= not; lit.: not, have)

没 méi (= not) is used in order to negate 有 yǒu (= have).

我	没	有	这	本	书	。
wǒ	méi	yǒu	zhè	běn	shū	_
I	not have	have	this	origin	book	_
I, me, my	be without, there is no, not have		this	grammatical: measure word, foundation, original, current, this	book	。
I don't have this book.

Listen:

没 méi is also used if an action has not been completed or has never started.

我	没	看	完	这	本	书	。
wǒ	méi	kàn	wán	zhè	běn	shū	_
I	not have	look	complete	this	origin	book	_
I, me, my	not have	look, read	finish	this	grammatical: measure word, foundation, original, current, this	book	。
I have not finished reading this book.

Listen:

Listen:

没méi (= not)没有 méi yǒu (= not; lit.: not, have)