How to make negative sentences with 并 and 根本
The adverbs 并 
and 根本 are used to emphasize a negation.
They are placed before predicate with negative adverb, such as 不 , 没 and 没有 .
They are translated as "definitely", "(not) at all" and "completely".
and 根本 are used to emphasize a negation.
They are placed before predicate with negative adverb, such as 不 , 没 and 没有 .
They are translated as "definitely", "(not) at all" and "completely". Pay attention
The adverb 根本 emphasizes a negation with more emotional coloring than 并.
Examples
我并不同意！
I don't agree at all!
wǒ bìng bù tóngyì
抱歉，我并没有说这个意思
Sorry, I didn't mean that at all
bàoqiàn, wǒ bìng méiyǒu shuō zhè ge yìsi
根本不对！
This is totally wrong!
gēnběn bú duì
他根本没考虑我的感情
He didn't think about my feelings at all
tāmen gēnběn méi kǎolǜ shíjiān