“Lo que quiero”: the neuter “lo”
CEFR B2 · part 1
edumaterial's parts within the level. The European framework does not subdivide them.
“Se vende”: the passive that Spanish actually usesSaying things without naming who does them: “se vende piso”, “se venden pisos” —agreeing…“Llevo dos horas esperando”: two verbs working togetherThe everyday combinations: “acabar de” (just), “llevar” + gerund (have been), “ponerse…“Aunque llueve” or “aunque llueva”Choosing the mood after “aunque”, “a pesar de que” and “por mucho que” according to…“Llegó Ana”: the subject after the verbPutting the subject after the verb where Spanish prefers it: with verbs of happening…“Depender de”, “soñar con”, “pensar en”The preposition each verb demands, which almost never matches the English one: “depender…“Ser” or “estar”: two verbs for one “to be”Choosing between “ser” and “estar” in everyday sentences: who you are and what you are…The rule, in three lines
Lo + adjective makes an abstract noun out of nothing: lo bueno, lo difícil, lo importante. And lo que is «what» inside a sentence: lo que quiero es dormir, no entiendo lo que dices. Qué only asks.
The usual slip. Using qué for «what» in a statement —no entiendo qué dices— which turns it into a reported question, and it is not what you meant.
Why it catches you out. English “what” does two jobs, asking and introducing, and Spanish splits them: “qué” asks, “lo que” introduces. And “lo” + adjective has no English shape at all — “the good thing” needs a noun that Spanish does not bother with.