Questions & Answers about Ana esqueceu seu casaco no sofá.
Esqueceu is the preterite form of esquecer (to forget).
Here it shows a completed past action: Ana forgot her coat at some specific moment in the past.
- esquecer = infinitive, to forget
- esqueceu = he/she/you(formal) forgot
So the sentence describes one finished event, not an ongoing or habitual action.