Answer:
Demonstrative Pronoun: <em>"These"</em>
Verbal: <em>"earning"</em>
Type of verbal: <em>"gerund"</em>
Personal pronoun:<em> "my"</em>
Explanation:
Demonstrative Pronouns: These are the pronouns which point to something specific within a sentence
Examples: this, that, these, those, such, none, neither.
Verbals: These are words made from verbs but functioning NOT as verbs but as something else (nouns, adjectives, or adverbs).
Examples: In the sentences; cooking requires a lot of skill, he is a learned man, she likes to eat mangoes, <em>cooking</em> (gerund)<em>, learned</em> (participle)<em>, and to eat </em>(infinitive)<em> are </em>verbals.
Gerund verbal: These are verbals formed by adding <em>-ing</em> after the verbs and functioning as noun.<em> "earning"</em> is acting as a noun; and hence is a gerund.
The personal pronoun "my" is used modifying gerund (noun) "earning"