Usages of muchísimo
Hoy me he reído muchísimo con mi hermano porque contamos chistes.
Today I have laughed a lot with my brother because we tell jokes.
Nos divertimos muchísimo en la fiesta.
We have a lot of fun at the party.
Mi hermano parece callado, pero con sus amigas habla muchísimo.
My brother seems quiet, but with his friends he talks a lot.
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