How to Say "lots of" in Spanish
The Spanish word for “lots of” is “muchas” — A1 level. This is a very common word in everyday Spanish.

Examples
Tengo muchas amigas.
I have many friends.
Hay muchas casas en esta calle.
There are a lot of houses on this street.
Ella lee muchas novelas de misterio.
She reads many mystery novels.
Matching with Feminine Things
'Muchas' is the special form you use for more than one thing that Spanish considers 'feminine'. Notice how it ends in '-as', just like the words it describes: 'muchas casas' (many houses), 'muchas personas' (many people).
Placement: It Comes Before the Noun
Unlike some other Spanish adjectives, 'muchas' almost always comes right before the thing it's describing. So, you'd say 'Tengo muchas ideas' (I have many ideas), not 'Tengo ideas muchas'.
Using 'Mucho' Instead of 'Muchas'
Mistake: “Hay mucho personas en la fiesta.”
Correction: Hay **muchas** personas en la fiesta. Why: In Spanish, describing words must match the noun. Since 'personas' is a feminine word and there's more than one, you need the form that ends in '-as': 'muchas'.
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