The indefinite article is typically used along with countable nouns. However, almost all nouns can be reclassified as countable or uncountable. That is why it would not be very meaningful to state that the indefinite article cannot be allowed to uncountable nouns. This research is to provide a new approach to the traditional view of reclassification of nouns of mental activity in terms of countability. The new approach could easily explain why the noun regard in We have a high regard of your paper does not have a potential of becoming a plural even if the noun has taken the indefinite article. This research is to suggest that in such cases the indefinite article represents a reduction of full form expressions.