What is 'Did you eat' when translated from English to Italian?

Answer 1

The singular Cosa hai mangiato? and the plural Cosa avete mangiato? informally and the singular Che cosa ha mangiato? and the plural Che cosa hanno mangiato?formally are Italian equivalents of the English phrase "What did you eat?" The choice depends upon whether the audience is of one (cases 1, 3) or more (examples 2, 4) and whether the interaction is on familial, friendly or peer-based terms (instances 1, 2) or one of respect to strangers or those senior in age, rank or status. The respective pronunciations will be "KO-sa eye man-DJA-to" and "KO-sa-VEY-tey man-DJA-to" informally and "key KO-sa man-DJA-to" and "key KO-sa AN-no man-DJA-to" formally in Italian.

Answer 2

Avete mangiato, Ha mangiato? and Hai mangiato? are Italian equivalents of the English phrase "Did you eat?" Context makes clear whether one formal (case 2) or informal "you" (example 2) or two or more "you all" (instance 3) suits. The respective pronunciations will be "a-VEY-tey man-DJA-to," "a man-DJA-to" and "eye man-DJA-to" in Pisan Italian.