Complement of adverb, adverbial phrase or Prepositional phrase?

Discussion of complement types is among new grammatical issues, not addressed in all its aspects yet. Place of adverbial complement in the sentence is also worthy of attention and study, since it is categorized as types of adverbs and also types of complements. What is a complement? There are enormous differences in the definition of complement. So much that almost no two grammarians have the exact same views. This is because some define complement as “what completes the meaning of the noun before or the sentence in which it has been used”, and some consider “a special type which is prepositional complement”. Complements are noun phrases placed after the preposition in a sentence and are sometimes compulsory and sometimes optional in accordance with their role. Complement types: Complement categories are very diverse and different in books. Thus, perhaps Kamyar’s division in this respect is more complete since only prepositional complements are included and almost all types are expressed: 1) verb complements, 2) noun complements, 3) adjective complements, 4) adverb complements, 5) pseudo-sentence complements. Adverb types: Adverbs are classified based on type and structure: a) adverbs with no indicator: 1- specific adverb 2- adverbs in common with nouns 3- adverbs in common with adjectives. b) Adverbs with indicators: 1- Adverbs with nunation 2- prefix adverbs 3- adverbial complements Types of phrases: 1.The grammatical unit made of one or more related terms, where the main word or the nucleus is a noun is called a noun phrase. 2. The verb phrase appears in the location of the statement and includes one or more smaller units. The main element here is the verb. 3- Adverbial phrase is part of the sentence that the verb does not need, and thus can be removed. 4. A string of words used as a phrase with an adjective nucleus is called an adjective phrase. Before the adjective a qualitative preposition, or a grade preposition can be used, and it can be followed by noun phrases, prepositional phrase or adjective phrases in a complementary role. So the adjective phrase may also appear as only an adjective. 5. The prepositional phrase is made of “a preposition + noun phrase”. Prepositions are grammatical words that appear only in front of a noun phrase. Prepositional phrases are used with various grammatical relationships, especially prepositional complement in noun phrase, indirect object and complement in verb phrase and also complement or adverbial complement. Prepositional phrase is not used in direct object and subject’s grammatical relations. Place of the adverbial complement in the sentence: Since the complement is a noun phrase that comes after the preposition and the adverb is removable it is hard to determine the position of adverbial complement as a phrase. So instead of being limited to noun, verb and adverbial phrases, we had better also consider prepositional and adjectival phrases. Thus, all the complements are categorized as prepositional phrases. It is also more appropriate for nouns in common with adverbs to be called adverbial complements whose preposition is removed. Mainly, differences about complements is due to authors’ perceptions because some, especially older authors, consider the complement solely with the literal meaning of the word, i.e. something that completes, in their definitions, so in addition to prepositional complement they consider other components such as objects and predicate as complements. Some, on the other hand, consider the connotation of the term and only categorize nouns placed after prepositions as complements of different types. This difference in perception could solve many uncertainties regarding the complements. Adjective in common with adverbs are categorized as either adverbial phrase or the adjectival phrase according to their role in the sentence. Whenever they are perceived as an adjective, they will be categorized as adjectival phrase, and whenever they are perceived as an adverb, as adverbial phrase. Therefore, it is vital to consider a word’s meaning and use in different sentences to determine their place. Limiting phrases to verb, adverb, and noun in the subject of adverbial complement and adjectives that take the role of a predicate will lead to ambiguities that can be disambiguated solely through considering the other two types of phrases, i.e. adjectival phrases and prepositional phrases. It is better to separate the prepositional phrases and noun phrases and consider the prepositional phrase as a combination of the nucleus, as a preposition, and a noun phrase