To want to [do something]: Querer + the verb in the infinitive. Yo quiero comar, Él quiere ir a casa.

To need to [do something]: Tener que + the verb in the infinitive. Tengo que leer este libro. (you can also use necesitar, like Necesito leer, but tener que is more common)

To have - not sure if you mean it like having something or having done something.

To own = tener. Yo tengo un perro mono.

To have done something = haber + the verb in present perfect. He visto un perro mono ("He" is haber in first person) - <a href="https://www.spanishdict.com/translate/haber" target="_blank">https://www.spanishdict.com/translate/haber</a>;

(Oh, or "to have to," like "I have to leave." I would use Tener Que or Necesitar que.)

To must [do something]: Hay que + the verb in the infinitive. Hay que leer este libro. That's more like "one must." Otherwise the "need to" stuff from above applies.

Espero que este te ayudare.

Hola! I want to = yo quiero, I need to = yo necesito, I have to= yo tengo que and I must = yo debo or yo tengo.

ex. Yo quiero comer frutas, yo quiero bailar, yo quiero fresas. In fluent verbal communication, you Can get rid of the word ”yo” before ”quiero” ex. Quiero comer frutas, quiero bailar, quiero fresas.

XX 😊