"The boy wants to learn."
Translation:El niño quiere aprender.
Quiero is the "I" form of want. Quiere is the he/she/you formal (usted) form of want
Because you can't have two conjugated verbs together without a conjunction between them.
...quiere aprende...? he wants he learns? Doesn't make sense.
You have to use aprender - to learn in its infinitive unconjugated form here:
quiere aprender - he wants 'to learn'...
when use "estudiar" and when do we use "aprender",what`s the difference between them?