| Form | me / te / lo / la / nos / los / las | Te quiero. | I love you. |
| Form | os for vosotros | Os espero en casa. | I'll wait for you at home. |
| Gender and number | the pronoun takes the gender and number of the noun | ¿La sopa? La hago yo. | The soup? I'll make it. |
| Position | before a conjugated verb | Lo compro hoy. | I'm buying it today. |
| Position | attached to an infinitive or a gerund, or before the whole phrase | Voy a comprarlo = Lo voy a comprar | I'm going to buy it. |
| Personal a | a before a specific person or a pet | Veo a María. | I can see María. |
| B1Personal a | a before quién / alguien / nadie | No conozco a nadie. | I don't know anybody. |
| An idea | lo replaces an idea or a whole sentence | No lo sé. | I don't know. |
| Trap | tener takes no a, even before people | Tengo dos hermanos. | I have two brothers. |
| Trap | a el → al | Llamo al médico. | I'm calling the doctor. |