To ask "what is dad buying us" in Spanish, there are a few different ways to phrase it. One option is "¿Qué nos está comprando papá?" which translates to "What is dad buying us?". Another option is "¿Qué nos compra papá?" which means "What is dad buying for us?". Its important to note that the word "nos" means "us" and "papá" means "dad" in Spanish.