Hint: Nouns, Verbs, Adjectives and adverbs are parts of speech. There are various parts of speech. They tell us about the different grammatical functions of a given category of words. For e.g. the words falling under the category of ‘verbs’ tells us about the time, action or state of being.
Complete answer:
Let us first understand the meaning of the given parts of speech-
Noun - It is a naming word. A noun is a word that refers to any name, place, thing, feeling, animal or abstract idea.
Verb - Verbs are the action words. They tell us about the action, time or state of being of the subject in any sentence.
Adjective - Words that describe or modify nouns and noun phrases are known as adjectives. They are used to describe the quality or quantity of a given noun. There are 3 degrees of comparison: Positive, Comparative and superlative.
Adverb - Words that modify a verb, an adjective, another adverb or a complete sentence are known as adverbs. These words usually end with -ly and are written before nouns in a sentence.
Love as a noun is an abstract noun(noun which tells about feeling, expression, idea or quality; cannot be perceived by five senses). E.g. Love is an intense feeling.
Love as a verb shows an act of affection. E.g. The mother loved her child.
Love is not a quality therefore it cannot be used as an adjective. Also, since adverbs end in -ly, therefore it is not an adverb either.
Thus Love can be used as a verb or a noun only.
Note: There are many such words that can be used both as nouns and verbs. Insult, permit, hate etc. are some of the words that also function both as a verb as well as a noun.
