There are seeral ways to express negation:
Negative forms of the verb
In most cases a negative meaning is given to a verb by adding the negative particle NOT. In some cases, not is replaced by never.
Negative structures
"Not" normally follows the principal auxiliary or modal verb in a verbal structure. In the few cases where there is no auxiuliary or modal (present simple or past simple affirmative tenses), it follows do or did. The choice between not and n't is a matter of style. Not is generally preferred in written English, n't in spoken English
Examples:
He lives in London / He does not live in London
I can see you / I cannot see you / I can't see you
I like those photos / I don't like any of those photos
The man lost all his money / The man did not lose all his money
I should eat (some) more chocolate / I shouldn't eat (any) more chocolate.
You ought to have gone home / You ought not to have gone home.
I may be able to finish in time / I may not be able to finish in time.
"Never" is used in the same way as not, except when the verb is in the simple present or simple past tense. With never, there is no need to add a missing auxiliary using a form of do.
Examples:
He plays tennis / He never plays tennis. (but not He does never play)
I saw the Queen yesterday / I never saw the Queen yesterday.
I've been to London . / I' ve never been to London.
You should eat a lot of chocolate / You should never eat a lot of chocolate.
You ought to have done that / You ought never to have done that.
I may be able to finish this. / I may never be able to finish this.
Not many and not much
The particle not can also be added to much or many, to form the small-quantity quantifiers not much or not many.
Examples:
Not many people came to the concert last night.
It's still pretty poor, and not much better than it used to be
Negation using a noun or pronoun
Less frequently, a negative meaning may be implied by attaching a negative particle to a noun group, either the subject or the direct object of a sentence. In this case, the negative particle that is used is no. No is sometimes combined with -one, -thing, -where, etc. to make negative indefinite pronouns, noone, nobody, nothing, nowhere, etc.
Examples:
Trees grow on the moon / No trees grow on the moon.
I can see someone / I cannot see anyone / I can see noone.
The man lost time / The man lost no time
I should eat more chocolate / I should eat no more chocolate.
There's something in that box / There's nothing in that box.
The riders were able to finish the race/ No riders were able to finish the race.
"None of" is used in the same way as no, except that it is followed by a definite article or another determiner
Examples:
The riders were able to finish the race/ None of the riders were able to finish the race.
Your shoes are clean / None of your shoes are clean.
I like those photos / I like none of those photos.
Did you eat some chocolates? / Did you eat none of the chocolates ?
Negation using an adverb phrase
It is also possible to add a negative meaning to a sentence, by including an adverb phrase with a negative meaning. The most common group of negative adverbial phrases are formed using the word without, or a preposition followed by no.
Examples:
You can have some whiskey / You can do without whisky.
He's walking with a stick / He's walking without a stick
He did it for a good reason / He did it for no reason at all.
I want you to do it with me / I want you to do it without me.
Neither and nor
"Neither" and "nor" are used to link a pair of negative statements. Nor can be used by itself to introduce the second of a pair of negative statements, even if a normal "not" structure is used in the first one. Neither and nor can be attached to verbs, or to nouns (subjects or objects), or even to prepositional phrases. When nor introduces a second main clause, the subject and the auxiliary or modal are inverted.
Examples:
He neither looks like a gentleman, nor talks like a gentleman
I can neither see it nor hear it.
I didn't agree with what he said. Nor did I believe him.
I haven't eaten for three days; nor have I slept.
They can't find the problem; nor can they explain why it happened.
I like neither your appearance nor your attitude.
Neither the President nor the Prime minister was (were) present.
I could convince him neither with my arguments nor with my warnings.
You should wash this in water, but neither with soap nor with detergent.
Negation using negative adjectives
An affirmative statement can be turned into a negative statement by adding a negative prefix or suffix to an appropriate adjective.
Examples:
This is possible > This is impossible.
You are being very cooperative > You are being very uncooperative.
The border guards were friendly > The border guards were unfriendly.
I'm very pleased with my results > I'm very displeased with my results.
He's being very sensible > He's being very senseless.
Tag questions
Negative tags attached to the end of affirmative statements have the structure and appearance of negative questions, but they do not really express a negative value, and they are not really questions ; they are essentially an expression of minor doubt, or a means of requesting confirmation of a statement or an opinion.
Examples:
You're coming, aren't you ?
This is the right road, isn't it ?
We'll get to the airport on time, won't we.
You managed to get everything on the shopping list, haven't you ?
We must give them a nice present, mustn't we ?
We'll be able to get our money back if it breaks, won't we ?
