'Need' can be a regular verb or a modal. As a regular verb it means 'require' and is followed by the to- infinitive. Example: We need to work on rebuilding the quality of food, and life. In other words, it is necessary for us to improve the way we eat and live. Example: We just need to make people more aware of the country's culinary history. The sentence says, it is necessary for us to help people to become more aware of the country's food history. In this sense, 'need' can also be followed by a gerund. Example: Your shirt needs cleaning. As a modal, 'need' is used to express a necessity or an obligation. It must be used with another verb. Note that we do not need 'to' in between the two verbs in this context, and no agreement is needed for a singular noun. Example: Need I say it again? Example: All she need do is apply.