Se Emotivo
These kind of pronouns are irrelevant to the meaning of the verb since it does not play a grammatical role in the sentence. However, it adds to the action a sense of completion. It is usually related to verbs of consumption, verbs that indicate a process that shows the consumption of an object, such as beber, comer, fumar, gastar, apostar o jugar, leer, and escuchar because it intensifies the meaning of the verb.Se bebió una botella de vino.
He drank up a bottle of wine.
Estaba tan nerviosa que se fumó todo un paquete.
She was so nervous that she smoked a whole pack.
Rosa se leyó todo el libro en un día porque le pareció muy interesante.
Rosa read the whole book in one day because she found it very interesting.
These pronouns have their own conjugation for each subject pronoun:
Yo me bebí una botella de vino.
Tú te bebiste una botella de vino.
Él/Ella/Usted se bebió una botella de vino.
Nosotros nos bebimos una botella de vino.
Vosotros os bebisteis una botella de vino.
Ellos/Ellas/Ustedes se bebieron una botella de vino.
Notice that this pronoun is always placed in front of the verb and not after.
Se Aspectual
Unlike the “se emotive” pronoun, these pronouns play a grammatical role in the sentence. If left out, the sentence gets a different meaning or becomes grammatically incorrect. These kind of pronouns provide the sentence an "aspectual nuance", meaning that they give the verb a different meaning. In example the verb "dormir" means to sleep while "dormirse" means to fall asleep.Duermo hasta tarde los domingos porque no tengo que trabajar.I sleep in on Sundays because I don't have to work.
Se duerme cada vez que ve esa película.
He falls asleep every time he sees that movie.
These pronouns have their own conjugation for each subject pronoun:
Yo me despierto temprano cada día.
Tú te despiertas temprano cada día.
Él/Ella/Usted se despierta temprano cada día.
Nosotros nos despertamos temprano cada día.
Vosotros os despertáis temprano cada día.
Ellos/Ellas/Ustedes se despertaron temprano cada día.
Other verbs that use se aspectual are morir/morirse, ir/irse, llevar/llevarse, despertar/despertarse, and dormir/dormirse.