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"Necesito" is a form of "necesitar", a transitive verb which is often translated as "to need". "Hay que" is a phrase which is often translated as "one must". Learn more about the difference between "hay que" and "necesito" below.
hay que()
A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)
b. no direct translation
The following examples show ways to translate this word or phrase without using a direct equivalent.
Hay que llenar la solicitud a mano.The application must be filled out by hand.
Hay que trabajar mucho para ser exitoso.You have to work hard to be successful.
necesitar()
A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
1. (to require)
An auxiliary verb, or helper verb, is a conjugated verb that comes before a main verb and determines the main verb's tense, mood, or aspect (e.g., I have gone.).
a. to need
Necesitan salir ya si quieren alcanzar su vuelo.You need to leave now if you want to make your flight.
