Comparisons of Equality in Spanish
Comparisons of equality are used to say that two nouns are equal to one another in some way.
To compare two nouns, you can use tan (so) with an adjective or adverb. Here is the formula for tan comparisons.
tan + adjective/adverb + como
The adjective in a tan comparison must match the subject of the sentence in gender and number.
You also use tanto (so many/so much) to form comparisons of equality using a noun. Here is the formula for tanto comparisons.
tanto + noun + como
The word tanto must match the noun that follows it in gender and number.