From Longman Dictionary of Contemporary Englishneed to do somethingneed to do somethingused when saying that someone should do something or has to do something He needs to see a doctor straightaway. I need to catch up on my office work. You need to let me know by Monday if you want to take part. → need
Examples from the Corpus
need to do something• But if repeated calls fail to produce an answer the officer may subsequently need to account for himself.• We need to demonstrate how wrong they are.• Dolphins need to eat considerable quantities of food.• Management needs to ensure that the expensive and long-term project has a good strategic pay-off.• He reminded himself that he needed to have a key made for the desk drawer where he kept her letters.• We need to let kids be responsible, make some choices, let them feel powerful.• They may need to pause for a minute after each picture, since after-images tend to persist. 