| Have you already written the letter? | Ya has escrito la carta |
| How have you been? | Cómo has estado |
| I haven't seen Rafael today | No he visto a Rafael hoy |
| I haven't studied yet. | Todavía no he estudiado |
| I think she hasn't told the truth | Creo que no ha dicho la verdad |
| I think she's already seen that movie | Creo que ya ha visto esa película |
| I thought they hadn't gone. (use "pensar") | Pensé que no habían ido |
| Paco said he hadn't done the homework yet | Paco dijo que todavía no había hecho la tarea |
| Rosa says she's already taken out the garbage | Rosa dice que ya ha sacado la basura |
| They haven't been able to do it. | No han podido hacerlo |
| They haven't returned yet (use "volver") | Todavía no han vuelto |
| They said they hadn't put it in the garage | Dijeron que no lo habían puesto en el garaje |
| We haven't eaten yet | Todavía no hemos comido |
| When I arrived, they had already cleaned the kitchen | Cuando llegué, ya habían limpiado la cocina |