(That) you ate.
Comiste means have you eaten? or did you eat?
¿Qué comiste?
¿Qué comiste?
"Comiste" is the past tense of the Spanish verb "comer," which means "to eat." It translates to "you ate" in English.
¿Ya comiste?Ya almorzaste?
¿Comiste tú? or, ¿Comió Ud.?
" quel" <-- There is no such word in Spanish!., do you mean "que"? - "que" is "what".
¿Ya comiste? or ¿Ya comío?
de que: from what
Tener que = "to have to".
que is spanish for "what" avec is french for "with"
'What does what?' = 'Que hace que?' (with accents on the 'e' in 'que')