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"Add" is a transitive verb which is often translated as "sumar", and "that much" is an adverb which is often translated as "tanto". Learn more about the difference between "add" and "that much" below.
add(
ahd
)A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
2. (to combine)
4. (to confer)
a. dar
Her articles add a light-hearted touch to the magazine.Sus artículos le dan un toque de humor a la revista.
An intransitive verb is one that does not require a direct object (e.g., The man sneezed.).
