| A in safe (preterite) | action that interrupts |
| E in safe (preterite) | enclosed amount of time |
| F in safe (preterite) | focus on end or beginning |
| S in safe (preterite) | specific instance |
| all one's life (imperfect) | toda la vida |
| all the time (impefect) | todo el tiempo |
| always (imperfect) | siempre |
| every day (imperfect) | cada día/todos los días |
| every night (imperfect) | cada noche/todas las noches |
| every week (imperfect) | cada semana/todas las semanas |
| every year (imperfect) | cada año/todos los años |
| for a while (imperfect) | por un rato |
| frequently (imperfect) | frecuentemente |
| from time to time/once in awhile (imperfect) | de vez en cuando |
| generally (imperfect) | generalmente/por lo general |
| immediately (preterite) | inmediatamente |
| last month (preterite) | el mes pasado |
| last night (preterite) | anoche |
| last week (preterite) | la semana pasada |
| last weekend (preterite) | el fin de semana pasado |
| last year (preterite) | el año pasado |
| many times (imperfect) | muchas veces |
| never (imperfect) | nunca |
| often (imperfect) | a menudo |
| on mondays (imperfect) | los lunes |
| on the weekends (imperfect) | los fines de semana |
| one day (preterite) | un día |
| several times (imperfect) | varias veces |
| so many times (imperfect) | tantas veces |
| suddenly (preterite) | de repente |
| the day before yesterday | anteayer |
| this morning (preterite) | esta mañana |
| two times (preterite) | dos veces |
| usually (imperfect) | usualmente |
| while (imperfect) | mientras |
| yesterday (preterite) | ayer |