Need has the negative forms need not and do not need. The contracted forms needn't and don't need are also used. However, you cannot use all these forms for all meanings of need. This is explained below.
If you need something, it is necessary for you to have it.
For this meaning of need, the negative form is do not need.
Be Careful!
Don't use a progressive form of 'need'. Don't say, for example, 'We are needing some milk'. Say 'We need some milk'.
If you need to do something, it is necessary for you to do it.
You must use to in sentences like these. Don't say, for example, 'You'll need work hard to pass this exam'.
In negative statements you usually use do not need to. You say, for example, 'He doesn't need to go'. You can also use need not as the negative form. For example, you can say 'He needn't go'. However, this is less common and more formal. Don't say 'He doesn't need go' or 'He needn't to go'.
In questions, you almost always use do and need to. You usually only use need on its own in a few set phrases, such as 'Need I say more?' and 'Need I remind you?'
If you tell someone that they don't need to or need not do something, you are saying that it is not necessary for them to do it. If you want to say that it is necessary for someone not to do something, don't use 'need'. Instead you use must not or mustn't.
If you want to say that it was not necessary for someone to do something at a time in the past, you say that they didn't need to do it or they didn't have to do it. Don't say that they 'needn't' do it.
However, in a reporting structure you can use needn't.
If someone has done something and you want to say that it was not necessary, you can say that they needn't have done it.
You can use need with an -ing form to say that something should have something done to it. For example, you can say 'The cooker needs cleaning', rather than 'The cooker needs to be cleaned'.
| Imperative |
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| need |
| need |
| Noun | 1. | need - a condition requiring relief; "she satisfied his need for affection"; "God has no need of men to accomplish His work"; "there is a demand for jobs"condition, status - a state at a particular time; "a condition (or state) of disrepair"; "the current status of the arms negotiations" deficiency, lack, want - the state of needing something that is absent or unavailable; "there is a serious lack of insight into the problem"; "water is the critical deficiency in desert regions"; "for want of a nail the shoe was lost" necessity - the condition of being essential or indispensable |
| 2. | need - anything that is necessary but lacking; "he had sufficient means to meet his simple needs"; "I tried to supply his wants" essential, necessary, requisite, necessity, requirement - anything indispensable; "food and shelter are necessities of life"; "the essentials of the good life"; "allow farmers to buy their requirements under favorable conditions"; "a place where the requisites of water fuel and fodder can be obtained" | |
| 3. | need - the psychological feature that arouses an organism to action toward a desired goal; the reason for the action; that which gives purpose and direction to behavior; "we did not understand his motivation"; "he acted with the best of motives"psychological feature - a feature of the mental life of a living organism life - a motive for living; "pottery was his life" rational motive - a motive that can be defended by reasoning or logical argument irrational motive - a motivation that is inconsistent with reason or logic mental energy, psychic energy - an actuating force or factor | |
| 4. | need - a state of extreme poverty or destitution; "their indigence appalled him"; "a general state of need exists among the homeless" impoverishment, poorness, poverty - the state of having little or no money and few or no material possessions mendicancy, mendicity, beggary - the state of being a beggar or mendicant; "they were reduced to mendicancy" | |
| Verb | 1. | need - require as useful, just, or proper; "It takes nerve to do what she did"; "success usually requires hard work"; "This job asks a lot of patience and skill"; "This position demands a lot of personal sacrifice"; "This dinner calls for a spectacular dessert"; "This intervention does not postulate a patient's consent" exact, claim, take - take as an undesirable consequence of some event or state of affairs; "the accident claimed three lives"; "The hard work took its toll on her" govern - require to be in a certain grammatical case, voice, or mood; "most transitive verbs govern the accusative case in German" draw - require a specified depth for floating; "This boat draws 70 inches" cost - require to lose, suffer, or sacrifice; "This mistake cost him his job" cry for, cry out for - need badly or desperately; "This question cries out for an answer" compel - necessitate or exact; "the water shortage compels conservation" |
| 2. | need - have need of; "This piano wants the attention of a competent tuner" cry - demand immediate action; "This situation is crying for attention" be - have the quality of being; (copula, used with an adjective or a predicate noun); "John is rich"; "This is not a good answer" | |
| 3. | need - have or feel a need for; "always needing friends and money" |