| A | B |
|---|
| saber - knew | imperfect |
| saber - found out | preterite |
| conocer - knew a person or place | imperfect |
| conocer - met for the first time | preterite |
| querer - wanted to | imperfect |
| querer - tried to | preterite |
| no querer - didn't want to | imperfect |
| no querer - refused | preterite |
| poder - could, was able to | imperfect |
| poder - tried and managed to | preterite |
| no poder - tried and failed to | preterite |
| no poder - couldn't (didn't have the ability to) | imperfect |
| tener - got (received) | preterite |
| tener - had, used to have | imperfect |
