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"These are" is a phrase which is often translated as "estos son", and "each" is an adjective which is often translated as "cada". Learn more about the difference between "these are" and "each" below.
these are(
thiz
ar
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)
a. estos son (masculine)
These are the best tacos I have ever eaten.Estos son los mejores tacos que he comido.
b. estas son (feminine)
These are my daughters. Their names are Sandra and Monica.Estas son mis hijas. Se llaman Sandra y Monica.
each(
ich
)An adjective is a word that describes a noun (e.g., the big dog).
A pronoun is a word that stands in for a noun (e.g., she).
2. (every one)
b. cada una (feminine)
Each of us was given three tasks to complete.A cada una de nosotras nos dieron tres tareas para hacer.
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
3. (per unit)
4. (per person)
a. cada uno
Grandpa always used to give us fifty dollars each.El abuelo siempre nos daba cincuenta dólares a cada uno.
b. por persona
The insurance company offered them $50,000 each.La aseguradora les ofreció $50,000 por persona.