| A | B |
| Telling what you were doing | imperfecto |
| Telling what you used to like when you were a child | imperfecto |
| Telling what you used to do | imperfecto |
| Telling what you liked after the end of an event | pretérito |
| Telling what you did at a specific time in the past | pretérito |
| Telling what time it was | imperfecto |
| Telling what the weather was | imperfecto |
| Telling something you did once a day, once a week, etc. | imperfecto |
| Telling something you did every day, every week, etc. | imperfecto |
| Telling about your feelings during an event | imperfecto |
| Telling about your feelings after the end of an event | pretérito |
| Telling about two or more things that were happening at the same time | imperfecto |
| Telling about a sudden change in the weather | pretérito |
| Telling about two or more things you did one after the other | pretérito |
| Describing how people were or looked | imperfecto |
| Telling something that you did on a specific date | pretérito |
| Telling about something that you used to do when you were a child | imperfecto |
| Telling that you were able to do something (poder) | Yo podía |
| Telling that you wanted to (querer) | Yo quería |
| Telling that you tried to (querer) | Yo quise |
| Telling that you succeeded in doing something (poder) | Yo pude |
| Telling that you refused to... (querer) | Yo no quise |
| Telling that you met someone (conocer) | Yo conocí |
| Telling that you managed to do something (poder) | Yo pude |
| Telling that you knew something (saber) | Yo sabía |
| Telling that you knew someone (conocer) | Yo conocía |
| Telling that you knew how to do something (saber) | Yo sabía |
| Telling that you found out about something (saber) | Yo supe |
| Telling that you didn't want to... (querer) | Yo no quería |
| Telling that you could do something (poder) | Yo podía |