The correct answer is:
Verbal: thinking
Type of verbal: participle
A verbal is a word constituted by a verb yet operating as a different part of speech. A participle is a verbal that offices as an adjective. There are
two types of participles: Present Participles (always ending in -ing) and Past participles (regularly ending in -ed or -en, are formulated from the form of a verb applied with the verb to be as an auxiliary verb).
