Decide first
Meaning first: does this use name separate units that English can count directly?
Masterminds · English Grammar
Count and Non-Count
One Decision Controls the Grammar
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Count
Has singular and plural forms · one report · three reports
Non-count
No ordinary plural form · information · advice · furniture
Consequence
The decision controls a/an, many/much, numbers, and plural -s.
La categoría depende del significado inglés en esta frase, no de una traducción aislada.