Answer:
Ir a + infinitive for exemple: Go to eat / Ir a comer acabar de: Acabo de llevar a mi hermana a su casa. /I just took my sister to her house.
Step-by-step explanation:
To form the verbal periphrasis go to + infinitive you have to take the personal forms of the verb go in the present indicative + the preposition a + the infinitive of the main verb.
One such expression combines the verb acabar (conjugated) with an infinitive. The preposition “de” is always used. The formula is:
acabar de + infinitive = to have just done something (in the very recent past)
Acabo de llevar a mi hermana a su casa.
I just took my sister to her house.
Acabas de invitar a muchas muchachas.
You have just invited many girls.
Cristina acaba de conversar con mi mamá.
Christina has just spoken with my mom.
Nosotros acabamos de leer el libro.
We just read the book.
Vosotros acabáis de escribir unas cartas.
You-all have just written some letters.
Ellos acaban de nadar en el mar.
They have just swum in the ocean.
Al: Contraction of the preposition a and the article el. exemple: Ir al colegio
Del: Contraction of the preposition of and the article el. El gorro es del señor