Comparison with 没有
In comparisons “没有” (méiyǒu) means “not as … as”.
Basic structure
A + 没有 + B + adjective / adjective phrase
A is not as … as B
With 这么 / 那么
这么 (zhème) or 那么 (nàme) may precede the adjective, stressing that B has more of the quality.
A + 没有 + B + 这么 / 那么 + adjective
Meaning: A is not as … as B is.
Examples
儿子的个子没有他那么高
儿子的个子érzi de gèziour son's height
没有méiyǒunot as … as
他tāhe
那么nàmethat
高gāotall
昨天没有今天这么冷
昨天zuótiānyesterday
没有méiyǒunot as … as
今天jīntiāntoday
这么zhèmethis
冷lěngcold
这块手表没有那块好看
这块手表zhè kuài shǒubiǎothis watch
没有méiyǒunot as … as
那块nà kuàithat one
好看hǎokàngood-looking
Questions with 有
The affirmative of 没有 is 有 (yǒu). In this comparative sense 有 is used mostly in questions.
A + 有 + B + adjective + 吗？
Meaning: is A as … as B?
妹妹有姐姐高吗？
妹妹mèimeiyounger sister
有yǒuas … as
姐姐jiějieolder sister
高gāotall
吗maquestion particle
那件衣服有这件好看吗？
那件衣服nà jiàn yīfuthat piece of clothing
有yǒuas … as
这件zhè jiànthis one
好看hǎokàngood-looking
吗maquestion particle
Quick rule
Negative comparison: A + 没有 + B + adjective
A is not as … as B.
这块手表没有那块好看。— This watch isn't as good-looking as that one.
With 这么 / 那么: A + 没有 + B + 这么 / 那么 + adjective
A is not as … as B is.
昨天没有今天这么冷。— Yesterday wasn't as cold as today.
Question with 有: A + 有 + B + adjective + 吗？
Is A as … as B?
妹妹有姐姐高吗？— Is the younger sister as tall as the older one?