しかしながら、前置詞 関係代名詞whichの部分が関係副詞whereとなっています。の英語

However, the preposition+relative pronoun (which) part becomes a relative adverb (where).

Relative pronouns perform as 'conjunction + pronoun'.

a pronoun (as `that' or `which' or `who') that introduces a relative clause referring to some antecedent

of or relating to or formed with a preposition

the prepositional phrase here is used adverbially

The problem quoted isn't one, but there are problems in the reading section that ask you to distinguish relative pronouns from relative adverbs.

Sometimes a verb is derived from a noun and sometimes it is the other way around.

When the antecedent is this, that, these or those it is usual to use 'which'.

The verb 'help' takes to-infinitives and bare infinitives but bare infinitives are said to be the most common in casual text; as also used in this example sentence.

The relative pronoun 'that' has two states, a nominative case and objective case, but there is no possessive case.

a prepositional phrase

In a progressive tense sentence it becomes the -ing form verb, that is the present participle.

I don't really understand how to use prepositions.

in English the subject and the verb must agree in number

The next sentence has adjectives and adverbs.

You can omit the preposition in this phrase.

The following verbs only take the to-infinitive as their object.

a distinction between the verb and noun senses of `conflict' is that in the verb the stress is on the ultimate (or last) syllable

an infinitive with an adverb between `to' and the verb (e.g., `to boldly go')

It is difficult to use the prepositions properly.

an interrogative pronoun

A sentence normally has a subject and a verb.

a phrase beginning with a preposition

an interrogative adverb

An infinitive without a 'to' attached is called a bare infinitive.

the voice used to indicate that the grammatical subject of the verb is the recipient (not the source) of the action denoted by the verb

In English the verb precedes the object.

correlative conjunctions

A possessive pronoun indicates it is acting as a subject complement or a subject of the sentence.

There is a perspective in the use of prepositions.