What is a need modal verb?

Need the modal verb itself.

The basic meaning of need as a notional verb is to lack what is urgently needed and emphasize what is urgently needed.

Need is a transitive verb, which can take nouns, pronouns, infinitives and gerunds as objects, or infinitives or past participles as compound objects as complements.

When needed is used as a notional verb, it can be used in affirmative sentences, negative sentences, interrogative sentences and other sentence patterns, and there are variations of verbs.

When need is used as a modal verb, the person, tense and voice have not changed, and it must be followed by a verb infinitive without to as the predicate, which means "necessary, necessary". It is generally only used in negative sentences or interrogative sentences, and can also be used in affirmative sentences with negative meaning.

Lexical collocation:

Used as a verb

~+noun

Need clothes? Need clothes

Need education? Need to be educated

Need food? Need food

Do you need any help? Need help

Need money? Need money

Do you need rice? Need rice

Do you need water? Need water

~+adverb

Urgent need? Needs are extremely important.