Nominative Case (definition)
for a definition of the general notion of case see Case (Definition)
Nominative case is the form that a noun or pronoun takes when it is the subject of a verb. For example, the English pronoun takes the forms I, you, he, she, we, they when used as the subject of a verb as in "I saw John." In Scottish Gaelic there is never any difference between the nominative case and the accusative case. For this reason the two cases are typically grouped together as a single case we can call the common case.
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