cuestionas
Cuestionas is the second-person singular present indicative form of the Spanish verb cuestionar. It indicates that the person being addressed is currently questioning, challenging, or scrutinizing something. The verb cuestionar means to question, challenge, or examine the validity or basis of a statement, idea, or evidence. The related noun is cuestión, meaning a question or issue, which in turn comes from Latin quaestio.
Conjugation and usage notes: Cuestionar is a regular -ar verb, so its present tense forms are: cuestiono,
Examples of usage: "Tú cuestionas la metodología de este estudio." "¿Por qué cuestionas esa afirmación sin revisar
In summary, cuestionas is a common verb form used to express that someone is actively questioning something